The new Pro Grow LED 680 W has an industry leading output of PPF 1,950 µmol/s. Pro Grow blends top bin SMD diodes from both Samsung and Osram for an outstanding efficacy of over 2.85 µmol/J. Pro Grow LED 680 W emits 4,000 K full spectrum light with an industry leading CRI of 91.8. Coupled with a ultra-reliable Inventronics 0-10 V Dimming Driver, the light weight and durable die-cast aluminium housings offer cool, fanless & totally silent operation. 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.