Killark EZL12530 - Supplemental 20KA/10KV Surge Protection is standard for 120-277 VAC models & 10KA/10KV Surge Protection is standard for 347-480 VAC models. Explosion-proof with Traditional Industrial Appearance and Suitability. Mounting choice – Pendant, ceiling, 25° stanchion or 90° wall mount, all with “wireless” design that allows fast, easy fixture installation or removal for maintenance. Accessories – Available with or without guard, standard dome or angle reflector. EZL LED Housings can be retrofitted to existing EZ splice boxes to upgrade from Incandescent, Fluorescent or HID. Energy Savings – Less than 130 Watts of Power. Long Life – 50,000 - 55,000 Maintenance Free Hours to 70% Initial Lumens. Crisp White Light for Excellent Color Rendering – Chromaticity 5000K CCT range approx. 70 CRI. Ambient suitability -40°C to 55°C. Instant on – Including after power interruption. World Voltage 120-277VAC 50/60Hz. Solder-LESS LED Board Connections – Vibration Resistant. LM80-08 Measurement of lumen maintenance for LED light sources. LM79-08 Certified “Absolute” Photometry, including Chromaticity Color for Solid State Lighting. L70 Values - Industry Nomenclature for Hours of use to 70% of Initial Lumens (TM-21+ Cal.). Factory Sealed Construction – No external seal required. Suitable for Paint Spray Booth Applications The EZL Series LED High Bay/ Low Bay fixtures are high quality explosion proof light fixtures. Designed to go into the harshest environments where explosive vapors are present . - Class I, Divisions 1 & 2, Groups C, D - Class I, Zones 1 & 2, Groups IIB, IIA - Class II, Divisions 1 & 2, Groups E, F, G - Class III, Divisions 1 & 2