ViparSpectra 1200W LED Grow Light(10W Dual Chip LEDs)VIPARSPECTRA Spectrum has been developed by indoor growers over many years of careful experimentation and testing. With this light, you will see an increase in quality by growing bigger flowers that are dense and completely coated in resin. Dimmable feature allows precise spectral control and suitable for each growing phase. With excellent heat dissipation system, the light stays cool and very quiet, runs 70% cooler than HID lights. Daisy chain