Quantum T5 fluorescent fixtures use high efficiency, active electronic ballasts to power the high output, 54W, 4 foot T5 lamps. The Quantum T5 features a shallow profile, very low heat, wider bulb spread, & high quality German glass coated aluminum reflectors. Engineered with broader angles, these reflectors allow more light from the backside of the bulb to make it to the plants, & penetrate deeper into the canopy without being obstructed by the bulb itself! this “house of mirrors” effect lets you place the Quantum T5 closer to the tops of the plants, delivering 28% more lumens & still achieving a wider coverage area. The large area of light distribution coupled with the intense light is what makes Quantum T5 optimal for your garden’s growth. Assembly required (see instructions). 28% more lumens at plant level 60% on average lower shipping cost 30% more efficient than comparable models increases the efficiency of any T5\/Ho 54W lamps high quality German glass coated aluminum reflectors patented folding design for easy storage & transportation designed for Quantum T5 lamps, but will light any manufacturer’s lamps 120\/240V smartv out of the box (120V cord included, 240v-bacd6 cord optional) lamps not included<\/p>\n