Whether you're a pro grower with a green thumb or just starting out, the Pro Grow LED 680 W is perfect for you. With an industry leading output of PPF 1,950 µmol/s, this light is sure to help your plants thrive. The full spectrum 4,000 K light with 91.8 CRI is perfect for any stage of growth, and the ultra-reliable Inventronics 0-10 V Dimming Driver ensures that your light will be up and running when you need it. Plus, the die-cast aluminium housings offer cool, fanless & totally silent operation - so you can focus on what's important: your plants! Extended reliability is assured with IP-55 water resistant, cleanable housings. Fixtures are dimmable via the dial on the driver. Drivers can be fixed or remote mounted and the 0-10 V RJ14 3 m connection cables can be extended by up to 5 m per fixture. 4 quality mounting rope ratchets are included. SPECIFICATIONS Coverage: 150CM x 150CM Input Power: 680W Efficacy: 2.86 µmol/J PPF: 1950µmol/s Autosensing Input Voltage: 100-277V Mounting Height: >=15CM Above Canopy Passive Thermal Management: Passive Lifetime: 50,000hrs Power Factor: >90% Colour Rendering Index: 90ra Ambient Temperture: -40-40"C Storage Environment: -4DX-85"C RH10%-95% Chip: Samsung & Osram deep red Diodes Fixture Dimensions: 1120 x 1080 x 45MM Fixture Weight: 28kg IN THE BOX [1] x Pro Grow Model E Pro 680W LED Bar | 8 Bars | Full spectrum | 1950 umol/s