The 336X-PRO LED Grow Light is the most powerful grow light in the world for a 4' x 4' area, with tested PAR output matching that of a 1000W HPS! Our refined and Patent-Pending 3rd Generation spectrum features quantum balancing to ensure lightning fast growth rates, record breaking yields, tight internode spacing, super-dense flowers, and fruits so monstrous you'll bring all your outdoor plants indoors! Spectrum is only half the equation to enormous yields however, because light must be delivered efficiently through plant tissues at high intensities to ensure optimal penetration/absorption. Our Patent Pending X2 lens was developed specifically for this purpose, and is the most powerful optic ever invented for LED Grow Lights. Data proves the X2 lens provides an astonishing 569% higher light intensity compared to the same light without the X2 lens, a feat the competition has been unable to duplicate. LED Grow Light Features: Power selection control, modular internal build, superior thermal management, Power-Link, EXTREME (X2) Lens, 6-band spectrum, ultra low heat signature.