54,000 hours.CONTROLS — Dimming and non-dimming sensors, along with nLightAIR, may be factory installed utilizing the wiring box accessory that is attached to the top of the fixture.INSTALLATION — 1/4" NPT eye bolt with 1/2" thick loop and 6' cord with dimming lead provided for easy installation. 3/4" reducer available for stem or hook mounting. Optional surface mount bracket allows flexibility by adjusting in 15 degree increments for a total range of 150 degrees. Also capable of accepting 3/4" stem or hook.LISTINGS — UL/C-UL listed to US and Canadian Safety Standards. Wet location listed. For use under covered ceilings. For use in ambient temperatures from -40°F (-40°C) to 131°F (55°C see operational data). IP65 rated. Certified to meet NSF Splash Zone 2.DesignLights Consortium? (DLC) Premium qualified product. Not all versions of this product may be DLC Premium qualified." class="intervalBottom7 cursor text-overflow">描述：FEATURES & SPECIFICATIONSINTENDED USE — The Lithonia Lighting JEBL LED High bay is an affordable LED solution for users who prefer a luminaire with the look and feel of a round form factor. The JEBL delivers comfortable and uniform lighting from mounting heights up to 30ft. Certain airborne contaminants can diminish the integrity of acrylic and/or polycarbonate.Certain airborne contaminants may adversely affect the functioning of LEDs and other electronic components, depending on various factors such as concentrations of the contaminants, ventilation, and temperature at the end-user location.CONSTRUCTION — JEBL features a white die-cast aluminum housing along with a removable die-cast aluminum driver housing. Powder coat corrosion resistant finish provides 500 hours salt fog rating. Corrosion resistant external hardware standard. Optional clear polycarbonate or diffuse aluminum reflectors available separately.OPTICS — A .16" thick clear tempered glass lens protects LEDs. Placement, spacing, and aperture of LEDs provides a 120 degree spread of light. Optional frosted glass and polycarbonate solutions available.ELECTRICAL — High-efficiency LEDs. 0-10V dimming standard for a dimming range of 100% to 10%. Input voltage is MVOLT (120-277V) and HVOLT (347-480V). Suitable for 50/60Hz. Luminaire Surge Protection Level: Designed to withstand up to 6kV/3kA per ANSI C82.77-5-2015.L90 > 54,000 hours.CONTROLS — Dimming and non-dimming sensors, along with nLightAIR, may be factory installed utilizing the wiring box accessory that is attached to the top of the fixture.INSTALLATION — 1/4" NPT eye bolt with 1/2" thick loop and 6' cord with dimming lead provided for easy installation. 3/4" reducer available for stem or hook mounting. Optional surface mount bracket allows flexibility by adjusting in 15 degree increments for a total range of 150 degrees. Also capable of accepting 3/4" stem or hook.LISTINGS — UL/C-UL listed to US and Canadian Safety Standards. Wet location listed. For use under covered ceilings. For use in ambient temperatures from -40°F (-40°C) to 131°F (55°C see operational data). IP65 rated. Certified to meet NSF Splash Zone 2.DesignLights Consortium? (DLC) Premium qualified product. Not all versions of this product may be DLC Premium qualified.