Kind LED K3 L300 Grow Light is one of the best-selling indoor grow lights on the market. It features Kind LED's Perfect 12 Band Spectrum which blends 12 different colors of diodes in different quantities to create full sun to autumn harvest conditions for plant growth - double of the competition's measly 6 bandwidth spectrum. The K3 series of lights use about half the power of traditional HPS lights. This LED also features a secondary optical lens which effectively magnifies canopy penetration by 200%, significantly increasing production and yield. For efficient heat dissipation, this lighting fixture is equipped with 2 cm. heavy-duty heat sinks that keep the LED cooler which results in better performance and longer lifespan. It measures 15 in. x 11 in. x 3 in. and weighs 13 pounds. This lighting fixture has 6 modules with a total of 90 diodes.