Engineered with broader angles, these reflectors allow more light from the backside of the bulb to make it to the plants, and 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 and still achieving a wider coverage area. The large area of light dispersal coupled with the intense light is what makes Quantum's T5 optimal for your garden's growth.