The VM1L Series is a low profile low bay energy efficient LED. The design of the VM1L makes it suitable for harsh and hazardous environments using a cast copper-free aluminum housing and mount. Its low profile design allows it to fit in areas where there low ceiling heights will not allow for a larger fixture while still supplying high quality illumination. Features: Supplemental 20KA/10KV Surge Protection is standard for 120-277 VAC models & 10KA/10KV Surge Protection is standard for 347-480 VACmodels.; Reduced profile with Traditional Industrial Appearance and Suitability; Wide variety of optics including globes, globes with reflectors, all-glass refractors, and spin-top refractors; Swing-Barrel Nut patented tank mounting system; Optional Mounting arrangements including Pendant, Wall, Ceiling, Stanchion and others; VM1L LED Housings can be retrofitted to existing VM splice boxes to upgrade from HID sources; Energy Savings . less than 55 Watts of Power; Long Life . 50,000 - 55,000 maintenance free hours to 70% initial lumens; Crisp White Light for Excellent Color Rendering . Chromaticity 5000±K (CCT) 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; Dual Driver Option (DDR) . For additional energy savings, half of the fixture can be turned off; 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.) - Hazardous Rating(s): Class I, Division 2, Groups A, B, C, D; Class I, Zone 2, Groups IIC, IIB, IIA; Class II, Divisions 1 & 2, Groups E, F, G; Class III, Divisions 1 & 2