Highly reflective aluminum offers excellent uniformity, output and diffusion. Patent pending enclosed end wing design for better control of the light footprint. Made specifically for double-ended horticultural lamps (not included). Features German made, UL listed double-ended sockets. Improved spectrum DE lamps used in this fixture focus on the red component for increased photosynthetic response. They offer improved PAR values and increased PAR/Lumen maintenance (up to 90% PAR at 10,000 hours of operation). Light weight and easy to hang.