描述：UFITRLED Retrofit Kit? 4' and 8' LengthsFEATURES & SPECIFICATIONSINTENDED USEThe UFITR? LED retrofit kits are the most versatile and configurable retrofit kits on the market. UFITR delivers all the options of a new fixture with the labor and material savings of a retrofit kit. This kit can be used almost anywhere a fluorescent strip or low bay is in use today, including warehouses, factories, storage facilities, educational facilities and retail. Please see application guide below for more details on where to use this kit.CONSTRUCTIONThe kit is precision-formed using cold rolled steel. The lensing is manufactured from a diffuse acrylic polymer ensuring visual comfort and no LED pixilation. Finish: High-gloss, baked white enamel finish. Five-stage iron phosphate pretreatment ensures superior paint adhesion and rust resistance.ELECTRICAL Utilizes high-output LEDs integrated on a two-layer circuit board, ensuring cool-running operation. Optional internal pluggable wiring harness for reduced labor cost in row mounting applications. Electronic LED driver is multi-volt input and 0-10V dimming standard (see Operational Data on page 2 for actual wattage consumption). This fixture is designed to withstand a maximum line surge of 2.5kV at 0.75kA combination wave for indoor locations, for applications requiring higher level of protection additional surge protection must be provided.L70 > 60,000 hours with SEF at 25?C.L70 > 120,000 hours with HEF at 25?C.LEDs provide nominal 80CRI at 3500K, 4000K, or 5000K.Lumen output up to 2,500 lumens per foot.INSTALLATIONAssembly installs quickly and securely using TEK screws to the host housing.LISTINGS??UL certified to US and Canadian safety standards. For use in damp locations between -4°F (-20°C) and 86°F (30°C). Optional High Ambient (HA) ranging to 122°F(50°C) available on certain lumen packages (See ambient temperature chart for additional information).WARRANTY5-year limited warranty.Note: Actual performance may differ as a result of end-user environment and application. All values are design or typical values, measured under laboratory conditions at 25 °C. Specifications subject to change without notice.