HHE Blue LED Grow Light for Indoor Plant Growing,one Switch for Leaf,another for Flowering &hellip; (50x5w) Very High Quality Optimal 8-Band Wavelength Ratio plus real Infrared (IR) and Ultraviolet (UV) for the most efficient LED Grow Light system. Cool enough to touch even after 24 hours of use. No ballast needed - just plug in and Grow Green! 2 Switches are available in Unit Item.One for Leaf,Another for Bloom. Enlarge Irradiatedarea, focus illuminately on some plant according to the request. We use real Infrared diodes which output a nearly invisible wavelength beyond the light spectrum Lights come with our stellar Customer Service and 2 Year warranty serviced directly by us. We make customers service our #1 priority. Make the smart investment for your indoor growing hobby or business with a genuine HHE indoor growlight. With HHE LED there are no cheap imitations and no marketing gimmicks.