The PROLINK PRO700 Line Interactive UPS is designed to provide reliable backup power and protection for computers, networking devices, and other electronic equipment. It helps maintain stable operation during power interruptions and voltage fluctuations. With a 650VA capacity and 360W output power, this UPS provides practical power support for home and office environments. Additionally, its line-interactive design with AVR technology helps regulate voltage and improve power stability. The PRO700 supports a wide input voltage range from 140V to 300V AC. Moreover, it automatically senses 50Hz or 60Hz input frequency, allowing compatibility with different power environments. The UPS provides simulated sine wave output during battery mode and sine wave output during AC mode. Furthermore, the fast transfer time helps reduce interruptions when switching to battery operation. The built-in 12V 8.2Ah battery provides backup power for connected devices during outages. Therefore, users can safely save work and shut down equipment during unexpected power failures. The PROLINK PRO700 includes protection features against short circuits, overloads, discharge, and overcharge conditions. In addition, its intelligent battery management helps improve battery protection and lifespan. The compact design makes the UPS suitable for desktops, network equipment, and small office setups. Also, its low noise operation allows comfortable use in different working environments. The PROLINK PRO700 Line Interactive UPS combines voltage regulation, backup power, and essential protection features in a compact solution. As a result, it provides dependable power support for everyday electronic devices. Specifications: Capacity: 650VA / 360W Input Voltage Range: 140V–300V AC ±5% Battery: 12V / 8.2Ah sealed lead-acid battery Output Waveform: Simulated sine wave (Battery Mode) Protection: Short circuit, overload, discharge, and overcharge protection
Key Features Output Connections (1) IEC 60320 C19 Input Connections Schuko CEE 7 / EU1-16P Cord Length 8.2ft (2.5meters) Power Cord, C19 to CEE/7 Schuko, 2.5m Wide selection of Rack PDU power cords for a variety of IT equipment. Specifications : Output Overload Protection No Maximum Total Current Draw 16 Input Input frequency 50/60 Hz Acceptable Input Voltage 90 – 250VAC Number of Power Cords 1 Maximum Input Current 16A Maximum Line Current 16A Physical Net Weight 0.49lbs. (0.22KG) Shipping weight 0.66lbs. (0.3KG) Shipping Height 2.01inches (51MM, 5.1CM) Shipping Width 4.02inches (102MM, 10.2CM) Shipping Depth 7.99inches (203MM, 20.3CM) Color Black Environmental Operating Temperature 32 – 113 °F (0 – 45 °C) Operating Relative Humidity 0 – 95 % Operating Elevation 0 – 10000ft (0 – 3048meters) Storage Temperature -25 – 65 °C Storage Relative Humidity 0 – 95 % Storage Elevation 0 – 50000ft (0 – 15240meters) manufacturer link
Aokly Gel Battery 12V – 200A 58.5Kg manufacturer link
Max Configurable Power (Watts) 6.0kWatts / 6.0kVA Efficiency at Full Load 94.0 % Output Frequency (sync to mains) 50/60 Hz +/- 3 Hz Sync to mains Other Output Voltages 220 V, 240 V Load Crest Factor 3 : 1 Topology Double conversion online Waveform type Sine wave Bypass Internal bypass (automatic and manual) Input Input frequency 40 – 70 Hz Input voltage range for main operations 110 – 300 Adjustable (half load), 176 – 300V Efficiency at Full Load 94.0 % Other Input Voltages 220 V, 240 V Batteries & Runtime Battery type Lead-acid battery Typical recharge time 3hour(s) Battery Charge Power (Watts) 373 Watts Runtime View Runtime Graph View Runtime Chart Communications & Management Interface Port(s) DB-9 RS-232, Intelligent Smart Slot, USB Control panel Multifunction LCD status and control console Audible Alarm Alarm when on battery : distinctive low battery alarm : overload continuous tone alarm Emergency Power Off (EPO) Yes Available SmartSlot™ Interface Quantity 1 Surge Protection and Filtering Surge energy rating 600Joules Physical Maximum Height 685MM, 68.5CM Maximum Width 190MM, 19.0CM Maximum Depth 374MM, 37.4CM Net Weight 54.0KG Shipping weight 66.0KG Shipping Height 910MM, 91.0CM Shipping Width 290MM, 29.0CM Shipping Depth 495MM, 49.5CM Color Black Environmental Operating Temperature 0 – 40 °C Operating Relative Humidity 0 – 95 (Non-condensing) % Operating Elevation 0 – 3000meters Storage Temperature -15 – 60 °C Storage Relative Humidity 0 – 95 (Non-condensing) % Storage Elevation 0 – 15000meters Audible noise at 1 meter from surface of unit 55.0dBA Protection Class IP20 1 YEAR WARRANTY
Specifications : -True Double-Conversion Online UPS – Mircoprocessor control optimizes reliability – Input power factor correction – Output Power Factor 0.80. – Wide input voltage (110V – 300V) – Converter mode available – ECO mode for enegry saving (Only available for 1 – 3 KVA) – Generator compatible – Adjustable battery number only available for 6K and up models – Smart SNMP works well with either USB or RS-232 together – Emergency power off function (EPO) only available for 6K / 10K models – Optional isolation transformer available. manufacturer link
Vertiv Emerson Liebert itON LI32121CT00 800VA
Presentation High quality, Double-conversion On-line UPS designed for essential power protection needs even in the most unstable power conditions. Lead time Usually in Stock General provided equipment Basic UPS signalling RS-232 cable CD with software Rack mounting brackets User manual USB cable Number of tare power 25 W Number of power module free slots 0 Number of power module filled slots 0 redundant No UPS size WS Physical number of rack unit 5U colour Black depth 61.5 cm height 21.95 cm net weight 78 kg USB compatible Yes width 43.8 cm Input network frequency 40…70 Hz number of input connectors 1 hard wire 3-wire (1P + N + E) input voltage limits 110…300 V adjustable (half load) 176…300 V inputvolt_other 220 V 240 V input voltage 230 V Output rated power in W 6000 W Maximum configurable power in W 6000 W output frequency 50/60 Hz +/- 3 Hz sync to mains outputvolt_other 220 V 240 V crest factor 3 : 1 UPS type Double conversion online Wave type Sine wave output connector type Hard wire 3-wire (H N + E) 1 bypass type Internal bypass (automatic and manual) curve equation Efficiency curve load maximum 100 % curve X-axis maximum 100 % curve X-axis minimum 0 % curve X-axis title Load curve X-axis units Percentage curve Y-axis maximum 100 % curve Y-axis minimum 50 % curve Y-axis title Efficiency curve Y-axis units Percentage efficiency 94 % (full load) graph display 1 half load runtime 00:10:00 3000 W output voltage 230 V Maximum configurable power in VA 6000 VA rated power in VA 6000 VA Conformance product certifications CE standards IEC 62040-1-1 IEC 62040-1-2 Environmental ambient air temperature for operation 0…40 °C relative humidity 0…95 % non-condensing operating altitude 0…3000 m ambient air temperature for storage -15…60 °C Storage Relative Humidity Non-condensing 0…95 % storage altitude 0…15000 m acoustic level 55 dB show note OP temperature No IP degree of protection IP20 Batteries & Runtime battery type Lead-acid battery number of battery filled slots 0 number of battery free slots 0 Battery recharge time 3 h additional information Configurable for 220 : 230 or 240 nominal output voltage liquid value 0 battery curve D Battery power in VAH 1512 VAh runtime battery option SRV240RLBP-9A 1 3024 VAh SRV240RLBP-9A 2 4536 VAh SRV240RLBP-9A 3 6048 VAh SRV240RLBP-9A 4 7560 VAh SRV240RLBP-9A Communications & Management free slots 1 control panel Multifunction LCD status and control console alarm Alarm when on battery : distinctive low battery alarm : overload continuous tone alarm Emergency power off Yes manufacturer link 1 YEAR WARRANTY
INVO Online INH100 INVO Online INH100 Centralized server center, mainframe, network control center, computing center max efficiency UPS System . AC Input Bypass AC Output . Battery Fault Screen OFF ON LCD AC Input Bypass AC Output Battery Fault Screen OFF ON LCD INVO Online INH100 Full Specifications : INVO Online INH100 Centralized server center, mainframe, network control center, computing center INVO Online INH100 UPS High Frequency 1000 VA, LCD Display Inbuilt Battery 2 x 12V/9AH Specifications: Specifications : Centralized server center, mainframe, network control center, computing center INVO Online UPS High Frequency 1000 VA, LCD Display Inbuilt Battery 2 x 12V/9AH 1 year warranty Manufacturer Link
Professional II Series (1P/1P) PROLiNK Professional II Series (1P/1P) is a single-phase UPS system using microprocessor controlled true online double conversion technology and it can be used to provide protection for critical loads especially on IT applications. High input power factor correction in the system improves efficiency and reduces overall losses.
The Twist Line Interactive UPS 850VA TWUP850/LI provides backup power protection for computers, networking devices, and office electronics. It uses line interactive technology with automatic voltage regulation for stable power delivery. Additionally, the built-in 12V/7Ah battery supports continued operation during power interruptions. Moreover, the UPS includes LED status indicators for clear system monitoring. It also supports cold start functionality for startup without direct AC power. Therefore, it helps protect connected devices from voltage fluctuations and sudden outages. Furthermore, the compact tower design fits easily in home and office environments. The system also includes overload and short-circuit protection for safer daily operation. Additionally, the simulated sine wave output supports common desktop and networking equipment. Specifications: 850VA line interactive UPS technology Built-in 1x12V/7Ah rechargeable battery LED indicators for power status monitoring Automatic voltage regulation for stable output Overload and short-circuit protection system
Powerology Portable Power Generator,140400mAh Powerology 140400mAh Power Generator 500W Pure Sine-Wave Output -45W USB-C Power Delivery -18W USB-A Quick Charge -3.1A Dual USB Optimal Charge -220V UK AC Output -750W Max Surge
The SkyGate Mini DC UPS 20000mAh is a powerful and compact solution for uninterrupted power. Whether you need backup power for your router, modem, or other devices, this mini UPS has you covered. With a 20000mAh capacity, the SkyGate Mini DC UPS ensures your devices stay powered during outages or unexpected power cuts. This high-capacity battery provides extended usage time, keeping your essentials running smoothly. The SkyGate Mini DC UPS is designed for versatility, featuring multiple output options. It supports DC 9V/12V, USB 5V, and Type C, making it compatible with a wide range of devices, from routers to smartphones. Setting up the SkyGate Mini DC UPS is simple and hassle-free. Its plug-and-play functionality allows you to connect your devices quickly, ensuring uninterrupted power with minimal effort. The SkyGate Mini DC UPS is equipped with intelligent safety features, including overcharge protection, over-discharge protection, and short-circuit protection. These features ensure safe and reliable operation, protecting your devices from damage. Compact and portable, the SkyGate Mini DC UPS is easy to carry and store. Its lightweight design makes it perfect for use at home, in the office, or even on the go. In conclusion, the SkyGate Mini DC UPS 20000mAh offers reliable backup power with a high-capacity battery and versatile output options. Keep your devices running smoothly during power outages with this efficient and portable mini UPS. Specifications: Battery : 20000mAh Output Power : 18W POE Port : 24V/0.7A DC Port : 9V/2A, 12V/1.5A Output Ports : 5V/2A USB, 5V/1A Type-C
APC UPS Accessories SMX48RMBP2U APC Smart-UPS X-Series 48V External Battery Pack Rack/Tower for SMX1000, SMX1500, SMX750
The Twist Line Interactive UPS 1500VA TWUP1500/LI provides backup power protection for computers, networking devices, and office equipment. It uses line interactive technology with automatic voltage regulation for stable output performance. Additionally, the built-in dual 12V/7Ah batteries support continued operation during power interruptions. Moreover, the UPS includes LED status indicators for clear power monitoring and system alerts. It also supports overload and short-circuit protection for safer daily operation. Therefore, it helps protect connected devices from voltage fluctuations and sudden outages. Furthermore, the compact tower design fits home and office environments easily. The system also supports cold start functionality and simulated sine wave output for common electronic devices. Additionally, the automatic battery charging system improves operational reliability. Specifications: 1500VA line interactive UPS technology Built-in 2x12V/7Ah rechargeable batteries LED indicators for power status monitoring Automatic voltage regulation for stable output Overload and short-circuit protection system
PCE MX Online 3KVA 2700W is a high-performance online double-conversion UPS designed for critical power protection. It provides continuous, clean, and stable electricity for servers, network systems, and sensitive electronic equipment. In addition, PCE MX Online 3KVA 2700W uses true online double-conversion technology. Therefore, it delivers zero transfer time between mains and battery mode. Moreover, it provides pure sine wave output to ensure safe operation of connected devices. Furthermore, PCE MX Online 3KVA 2700W supports a 3000VA / 2700W load capacity. As a result, it can handle demanding setups such as multiple PCs and networking equipment. It also maintains stable voltage regulation under fluctuating input conditions. In addition, PCE MX Online 3KVA 2700W includes advanced protection features. Therefore, it guards against overload, short circuits, and power instability. Moreover, it is designed for professional environments that require uninterrupted power availability. Overall, PCE MX Online 3KVA 2700W delivers strong backup performance, zero-interruption switching, and reliable protection for critical systems. Specifications: 3000VA / 2700W high-capacity output Online double-conversion UPS technology Zero transfer time for uninterrupted power Pure sine wave output for sensitive equipment Overload and short-circuit protection system
Specifications : Le grand ups keor spx 800va 310301 1year warranty ups 800va
Specifications : UPS Type Tower Phase Single phase with ground Rating (VA) 1000 Nominal Power (W) 800 Standard Model Dimension (mm) 282 x 145 x 220 (D x W x H) Weight (kg) 9.8 Long-run Model Dimension (mm) 282 x 145 x 220 (D x W x H) Weight (kg) 4.1 INPUT Connection Type IEC 320-C14 Nominal Voltage 200/208/220/230/240 VAC Voltage Range 110-300 VAC (Load at 50%) 160-280 VAC (Load at 100%) Frequency Range 45 ~ 70 Hz Power Factor >= 0.99 OUTPUT Connection Type 3 x Universal socket (PRO901WS) 2 x Universal socket (PRO901WL) Nominal Voltage 200/208/220/230/240 VAC Voltage Regulation ±1% Frequency Range (Synchronized Range) 47 ~ 53 Hz or 57 ~ 63 Hz Frequency Range (Batt. Mode) 50 Hz ± 0.25 Hz or 60 Hz ± 0.3 Hz Current Crest Ratio 3:1 Harmonic Distortion ≤3% THD (Linear load) ≤6% THD (Non-linear load) ALARM & INDICATORS Battery Mode Sounding every 4 seconds Low Battery Sounding every second Overload Sounding twice every second Fault Continuously sounding LCD Load level, Battery Level, AC mode, Battery mode, Bypass mode and Fault CONNECTIVITY, CONTROL & MONITORING Front panel Status LED, Function keys, LCD display Communication Smart RS232* USB Port BATTERY Standard Model Type 12V / 9Ah Numbers 2 Typical Recharge Time 4 hours recover to 90% capacity Long-run Model Type Depending on the capacity of external batteries Number 2 or 3 Charging Current (max) 1A / 2A / 4A / 6A Adjustable manufacturer link
LiFePO4 BATTERY SYSTEM LPBF Series 48250-48300 48V 250ah Solar Panel Rechargeable Lithium Battery For Energy Storage System model LPBF48250 capacity 48V 12.5KWH Voltage 48V Rated Voltage 51.2V Charge Voltage 57.6V Discharge Voltage Range 48-57.6V MAX.Charge&Discharge Current 120A DOD 95% Modeles Connection 1-6 in parallel Ingress protection IP21 Cycle Life >6000, @25°C Working Temperature Range -10-50°C Net Weight(kg) 159KG Gross Weight(kg) 183KG Dimension(MM) 615*350*955MM 5 Years Warranty Specifications: LiFePO4 BATTERY SYSTEM LPBF Series 48250-48300 model LPBF48250 capacity 48V 12.5KWH Voltage 48V Rated Voltage 51.2V Charge Voltage 57.6V Discharge Voltage Range 48-57.6V 5 Years Warranty
INVO Online INH300 Centralized server center, mainframe, network control center, computing center Full Specifications : 3KVA 2100 W Half -Load 120 -300VAC, Full -Load 165V -300VAC 45.5Hz ~ 54.5Hz 220/230/240V ± 3% Waveform True Sine wave Frequency 50/60Hz ± 0.5 Distortion <3%(linear Load); <5%(Non -linear Load) Crest Factor 3:1 Efficiency 85% Overload Capacity 110%-150%:Switch to Bypass after 1min; >150%:Shutdown afte r 200ms Short Circuit UPS output turn off and alarm RS232 ;SNMP (Optional) LCD & LED Utility, Inverter, Bypass, Battery, Load ,Battery Mode ,Frequency , UPS Fault Indicator Audible Alarm -Battery Discharge Utility Failure, Beep/4s;Battery Low, Beep/1s UPS Abnornmal Continuous Beep and Red Led On Noise <55db (1Meter) Temperature 0°C~40°C Humidity 10%~90% Optional 19 inch Rack -mount Dimension (W * D * H) mm 357 x 144 x 215 439x190x341 514X262X455 (Long Time Mode) 514x262x710 (Standard Model) Specifications: Specifications : INVO Online UPS High Frequency 3000 VA, LCD Display Inbuilt Battery 6 x 12V/7Ah AC Input 2. Bypass 3. AC Output 4. Battery 5. Fault 6. Screen 9. LCD 1. AC Input 2. Bypass 3. AC Output 4. Battery 5. Fault 6. Screen 9. LCD 1 year warranty Manufacturer Link
The Prosonic 2000mAh MINI DC UPS | GS-1018 provides stable backup power for routers, modems, CCTV cameras, ONU devices, and other low-power networking equipment during electricity outages. Its compact design fits easily beside networking devices while maintaining reliable operation for home and office setups. This mini UPS supports multiple DC output options, making it suitable for different electronic devices that require continuous power. The built-in safety protections help prevent overheating, overload, overcharging, and short circuits, which improves long-term reliability and device safety. In addition, the lightweight body allows easy placement in small spaces without adding clutter to your setup. The unit delivers dependable backup support for internet connectivity during load shedding or sudden power interruptions. Users can connect routers and communication equipment directly to maintain stable online access for work, streaming, online classes, or security monitoring systems. Key operating features include efficient power conversion, portable dimensions, and compatibility with common DC-powered devices. The Prosonic GS-1018 also offers a practical solution for users who need uninterrupted networking performance without using a large traditional UPS system. Moreover, the compact battery backup system helps reduce downtime while protecting connected devices from sudden shutdowns. Its easy plug-and-play setup makes installation simple for both home and small business users. Specifications: 2000mAh backup battery capacity for networking devices Supports routers, CCTV cameras, modems, and ONU devices Multiple DC output options for wider compatibility Built-in overload, short circuit, and overcharge protection INPUT : 100-240Vac 50/60Hz OUTPUT : 5V/9V/12V/USB port/POE port
APC Easy UPS 800VA 230V Line Interactive UPS is a reliable power backup solution designed to protect home and office electronics from power outages, voltage fluctuations, and surges. It ensures stable and continuous operation for essential devices during unstable electricity conditions. It provides 800VA / 450W power capacity with line-interactive technology. Therefore, it automatically regulates voltage through AVR (Automatic Voltage Regulation) without switching to battery mode frequently. In addition, it helps extend battery life and maintain stable power output. The UPS includes an LED status display for clear monitoring of system and power conditions. As a result, users can easily check operational status, battery level, and load conditions at a glance. It features universal receptacles for flexible device compatibility. Meanwhile, its compact design and 5.3 kg weight make it easy to install in home or office environments. APC designs the Easy UPS series for dependable and efficient power protection. Therefore, this model is ideal for PCs, networking equipment, routers, and other essential electronics. Specifications: 800VA / 450W power capacity Line-interactive AVR technology LED status monitoring display Universal output receptacles Reliable backup for PCs and electronics
Features and performances x Outstanding efficiency and overload. x Perfect management and limitation of AC sources. x Power shaving of the consumption peaks. x Automatic allocation of the power available. x Active filtering of the load steps on the genset. x Automatic protection of the sources against overload. x Powerful multi-stage PFC charger. x Ultra-short transfer time (from 0 to 15ms max.). x Automatic and efficient stand-by. x Compatible with AC coupling. x Display, programming and data logging. x RS-232 communication for remote supervision. x iPS Dim. : 44.50x20x17.2( LxWxH cm ) , 17.50 x 7.87×6.8 ( LxWxH inch) x Carton box Dim.: 53.5×30.5×30.5 (LxWxH cm) , 21.65×11.8×12 (LxWxH inch) x Weight : 25Kg ( 55lbs ) Model iPS 3700-24 Inverter Nominal battery voltage 24V Input voltage range 19 – 34V Continuous power @ 25°C 2000W Power 30 min. @ 25°C 2800W Power 25 sec. @ 25°C 5.6kVA Maximum load Up to short-circuit Maximum asymmetric load Up to Continuous power Load detection (stand-by) 2 to 25 W Maximum efficiency 86 – 90% Consumption OFF/Stand-by/ON 3W / 9W / 70W Output voltage Sine wave 220Vac (+/- 2%) / 190-245Vac Dynamic behavior 5 ms (on load change 0 to 100%) Overload and short-circuit Automatic disconnection up to 10 times restart attempt Overheat protection Warning before shut – with automatic restart Battery charger 6 step adjustable : I-U-Uo-Equalize-Uo(low)-U(periodic) Charging current adjustable 0 – 45A Maximum input voltage 265Vac Input AC voltage range Adjustable threshold from 150 to 265Vac Battery control Absorption end By duration 2 / 0.25 – 10 h or by current – / 4 – 30A Absorption voltage** 28.8 / 19 – 34V Periodic absorption voltage** 19 – 34V Floating voltage** 27.2 / 19 – 34V Reduced floating voltage 19 – 34V Equalization** By number of cycles (1 – 100) or at set interval (52 weeks) Equalization end By duration 4 / 0.25 – 10 h or by current – / 4 – 30A Deep-discharge protection 21.6 / 19 – 34V Reduced floating time 0 – 32 days Periodic absorption time 0 – 10 hours General data iPS 3700-24 Auxiliary Output 2 independent Transistor short circuit protected outputs Auxiliary Input 2 Opto Coupler Programmable Input 10V Æ 60VDC Net Weight 25Kg ( 55lbs ) Weight with the cartoon box 26.2Kg (57.5lbs) 1 Year warranty
UPS PCE EXDC-2 MAX UPS Adapter for Cameras & Modems
The Beco GP1200 1200VA 720W UPS delivers reliable power backup for home and office electronics. It keeps key devices running during outages. This helps prevent data loss and sudden shutdowns. Users gain peace of mind knowing devices stay protected. Moreover, the Beco GP1200 1200VA 720W UPS features 1200 VA capacity and 720 W output power for strong support. It handles computers, routers, modems, and monitors easily. Large systems stay powered long enough to save work. Performance stays stable and secure. In addition, the UPS includes built-in surge protection for reliable defense against voltage spikes. It guards appliances from unstable power conditions and electrical surges. This adds extra safety during storms or fluctuations. Protection stays consistent over time. Furthermore, the Beco GP1200 1200VA 720W UPS offers automatic voltage regulation without manual settings. It smooths voltage drops and spikes quickly. This helps connected devices run smoothly. Reliability increases in daily use. Also, the UPS provides battery backup when power fails. You can finish tasks and save important files before turning off systems. This reduces the risk of data corruption. Backup power feels dependable. In addition, the Beco GP1200 1200VA 720W UPS includes clear LED indicators for power and battery status. You can check performance at a glance. This helps monitor conditions with ease. Users stay informed during operation. Moreover, the UPS includes multiple output sockets for connecting more devices at once. This improves flexibility for busy workstations and entertainment setups. You can protect multiple electronics with one unit. Furthermore, the Beco GP1200 1200VA 720W UPS supports easy installation and quick setup. Users can connect devices without complicated steps. Setup remains simple for all users. Also, the compact design fits neatly on desks, shelves, or cabinets without taking much room. It blends well into home and office spaces. Portability stays practical. Overall, the Beco GP1200 1200VA 720W UPS delivers strong battery backup, surge protection, and smooth voltage regulation. It guards electronics and ensures uninterrupted use. This UPS is ideal for users seeking reliable, everyday power protection. Specifications: 1200VA, 720W, LED, Plastic Case Input: 140-290 VAC Output: 230VAC 50/60HZ 12V 7.5AH *2pcs, Universal Socket *4 + EU Plug With AVR, Bypass output Overload and short circuit protection
INVO online INH1000 NVO Online UPS High Frequency 10000 VA, LCD Display Inbuilt Battery 16 x 12V/9 Ah Specifications: Specifications : AC Input Bypass AC Output Battery Fault Screen LCD AC Input Bypass AC Output Battery Fault Screen LCD 1 year warranty Manufacturer Link