DIMMABLE & DAISY-CHAIN FUNCTION The Upgraded GL series growing lights have Dimming Knob and Power Switch, with the Daisy-Chain control box and connect cords, One grow light can control up to 20 lights intensity at same time. This group dimming control function no need extra control panel, very convenient to extent the coverage for big indoor growing house or large growing tent. HIGH EFFICIENCY & HIGHER YIELD MIXJOY Indoor Plant Light is equipped with latest High Efficient Samsung LM301 LED series diodes and Dimmable MeanWell Driver, high efficiency up to 2.8 umol/J and powerful output, enabling you to obtain higher yields. Only consumes 450w, which saves up to 50% energy than HPS or other SDM LED or Blurple light. Veg footprint: 6 x 6 ft, Bloom footprint: 5 x 5 ft. SUNLIKE FULL SPECTRUM The real Sunlike full spectrum with white, blue, red and IR diodes (3000K, 5000K, 600nm and 760nm), infinite close to natural light, provide all types of indoor plants and a