Yescom 6" Air Cooled Cool Tube Wing Reflector Hood 17" x 14" for HPS MH Grow Light Bulbs Indoor Tent Hydroponics Tempered glass 6" cool tube with wing; Streamlined design, quick air cooling and avoids high heat to protect your plant Upgraded 0.6mm thickness aluminum plate with pea texture, high reflectivity up to 95%; Removable extended wings, reflective surface for maximum lighting intensity With UL listed standard E39/E40 ceramic socket for compatibility with most bulbs; Fits for 250W/400W HPS or MH grow light bulbs Standard 6" air vent to fit 6" exhaust fan system (NOT included) and any grow tents Overall Dimension (LxWxH): 17 5/16" x 14" x 6" (44 x 35.5 x 15.24 cm); Assembly is required, easy to set up