Killark VTR-1 - Crisp White Light for Excellent Color Rendering – Chromaticity 5000 K (CCT) approx. 70 CRI. Energy Savings – High lumens per watt. Long Life – 99,000+ maintenance free hours to 70% initial lumens. Ambient suitability -40°C to 55°C up to 121W. Instant On - Including after power interruption. 120VAC 60Hz. Instant On – Including after power interruption. Vibration Resistant Solder-LESS LED Board Connections The VTR Series LED retrofits are designed with a copper-free aluminum housing for superior corrosion resistance in harsh and hazardous environments. The VTR is a Hazardous Location Certified Universal retrofit that adapts to the Killark V-Series, Appleton V-51, Crouse-Hinds V-Series, and Thomas & Betts Red-Dot V.