Sun System® LEC® 630 utilizes cutting edge Light Emitting Ceramic® technology. This fixture has a dual lamp configuration offering increased wattage in a single fixture design. Fixture has 98% reflective German aluminum insert and 95% reflective textured corners for excellent output, uniformity and diffusion. Highly efficient agriculturally engineered CDM-T Elite 315/930/U/O Agro Lamps (lamps included). Greatly improved full color light spectrum out of next generation ceramic lamps. Higher amounts of beneficial UV and far red spectrums increase the lamps growth power to the plants. Very high 1.95 PPF per second light source. 3100°K or 4200°K color temperature, high 92 CRI, 33,000 initial lumens (105Lm/W). Long life 20,000 hour lamp. High 90% lumen maintenance @ 8000 hr. High 85% PPF maintenance @ 20,000 hr. Unique open rated lamp construction reduces radiant heat from the arc tube and is suitable for open fixture use. 50/60 Hz low frequency, square wave, highly efficient electronic ballast rated for 50,000 hour ballast life. LEC® 630 driver incorporates built in thermal protection. One year warranty on lamps. Item will not ship UPS. Must ship on a pallet flat rate only. 277 Volt lights will only run properly on a 3 phase electrical system for commercial applications only.