VIVOSUN Double Ended Wing Reflector Hood for DE Lamps Aluminum Lined for Grow Tents and Rooms HIGH QUALITY MATERIAL: Lined with premium imported German aluminum for a reflective rating of over 90% and the best light conservation possible STRONG, UNIFORM LIGHT DISTRIBUTION: Compact 17x16.5 wing reflector concentrates light to help plants grow quickly in small spaces; carefully textured surface scatters light evenly EASY INSTALATION: Ultra-light unit has rounded edges for safe and easy instalation; rugged materials dont rust or corrode for a long, maintenance-free service life DOUBLE ENDED FOR SUPERIOR RESULTS: Quality double ended lighting systems deliver the highest quality light evenly and without obstruction and last almost twice as long as single ended systems ECONOMICAL AND ENERGY EFFICIENT: Double ended HPS models provide 35% more available energy than single-ended HPS lamps; enjoy heavier harvests and lower energy bills