The LUXCORE? Hood reflector features a trapezoidal design to further increase efficiency by maximizing light exposure , as well as a common plug that's compatible with most manufacturers' remote ballasts. FEATURES: ? Unique concealed ventilation design enhances and maximizes the cooling effect hence extending the lamp life. ? Special design based on optics calculates the infrared and ultraviolet rays’ reflection angles using Optical Computer generates special light curve and maximizes the radiation efficiency. ? German mirror-finish reflecting plate exerts more energy even with low wattage lamps such as 250 W or 400 W. At the same time, the special plate is designed to prevent overheating the plants underneath. ? The complete package is UL- Listed, including UL listed Socket, lamp cord with male IEC connector, cable fixture, heat-resistant silicone casing, and heat-resistant terminal. ? Durable galvanized steel housing with white baked finish provides perfect heat-resistance and dustproof functions. ? Custom accessories, include 5” flange, Air tube fixing screws and Polished V hangers .