The LUMii Black 720w digital light produces full spectrum light ideal for both growth and bloom. Its PPF of 1870 μmol/s is superior to the PPF of typical 1000W HPS lamps and approaches that of 1000W double-ended HPS lamps. Owing to its construction the light distribution over the crop is more even, and the danger of scorching greatly reduced. Powered and controlled by the LUMii BLACK 600W electronic ballast (sold separately, or with the LED Fixture as a kit), this high-performing, high-efficiency LED 6 Bar Fixture can be used singular or as part of a lighting array. Lightweight and easy to install, if hung by means of LUMii Rope Ratchets the height of the fixture can be adjusted as your plants grow. The LUMii BLACK 600W ballast, mounted directly on the fixture or positioned remotely, you can dim the LED Fixture to 400W or 250W, or the 600W boost setting may be selected to give maximum light output. Technical Specifications: Full Spectrum LED Light Output PPF – 1870μmol/s Efficacy – 2.62μmol/J AC Input Power – Variable – Ballast Settings 250W, 400W, 600W, 600W Boost AV Input Voltage – 130-160V AC Input Frequency – 40–100 kHz Lifetime – L90 >50,000Hr IP Rating – IP65 Weight (LED fixture only) – 7.8kg Overall Size (in use) – 110cm x 108cm x 5cm