Killark KFLH21034 - Supplemental 20KA/10KV Surge Protection is standard for 120-277 VAC models & 10KA/10KV Surge Protection is standard for 347-480 VAC models. Crisp White Light for Excellent Color Rendering – Chromaticity 5000 K (CCT) approx. 70 CRI. Energy Savings – High lumens per watt. Long Life – 100,000+ maintenance free hours to 70% initial lumens. Ambient suitability -40°C to 55°C up to 250Wk to -50°C for non-hazardous applications. Instant On - Including after power interruption. World Voltage 120 - 277VAC 50/60Hz. Instant On – Including after power interruption. 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.) The KFLH Series LED High output floodlights are designed with a copper-free aluminum housing and painted with a powder epoxy finish for superior corrosion resistance in harsh and hazardous environments. Killark LED floodlights provide a crisp white light that is great for color rendering. The KFLH Series floodlight are suitable for marine locations and high ambient areas. - Class I, Division 2, Groups A, B, C, D - Class I, Zone 2, Groups IIC, IIB, IIA - Class II, Division 2, Groups F, G - Class III, Divisions 1 & 2