300/400/500W Adjustable UFO High Bay, 44900-79100 lm, 4000K/5000K, 100-277V

Product Overview This adjustable UFO high bay delivers selectable outputs of 300, 400, or 500 watts, producing 44,900 to 79,100 lumens. Color temperature is field-adjustable between 4000K and 5000K. The fixture operates on 100-277V, supports 0-10V dimming, and features a 90 Degrees polycarbonate lens. The housing is aluminum alloy, finished in black, and rated for IP65 and IK08 durability. Dimensions are 17.7 inches diameter by 10.6 inches height, with a weight of 14.5 pounds. The fixture is designed for eye-hook mounting and includes 6kV surge protection. Power factor is 0.95, with total harmonic distortion at 20%. The rated lifespan is 170,000 hours (L70). Operating temperature range is -22 Degrees F to 122 Degrees F. CRI is 80+ for accurate color rendering. Where This Product Fits Best Suitable for warehouses, manufacturing, and industrial spaces requiring high-output, energy-efficient lighting. The adjustable wattage and color temperature support varied ceiling heights and visual tasks. The fixture replaces 1500W or 2000W metal halide units in retrofit or new construction. Use in environments exposed to dust, moisture, or moderate impact. The 90 Degrees beam angle targets open areas and racked aisles. Eye-hook mounting supports rapid installation in high bay applications. Performance and Functional Considerations Selectable wattage and color temperature allow adaptation to changing facility needs. The 155 lumens per watt efficacy supports energy reduction goals. 0-10V dimming integrates with advanced lighting controls for occupancy or daylight response. The polycarbonate lens resists impact and maintains optical clarity. The fixture maintains performance in ambient temperatures from -22 Degrees F to 122 Degrees F. Surge protection at 6kV guards against electrical disturbances common in industrial environments. The 170,000-hour rated life reduces maintenance frequency. The 90 Degrees beam angle delivers focused illumination for task and general lighting. The fixture's 14.5-pound weight and compact profile simplify handling during installation. ETL certified and rebate eligible. IP65 and IK08 ratings confirm resistance to dust, water, and impact.