... MOQ,Work quiet US/HK/China paten Product nameDimmable 400W Ballast for grow light HydroponicXLDS Characteristics1, Size: 186*93*59 mm2 ... : -30 ~ +50C / -22~+122FOur Advantages: Low Energy-consumption, Timing Dimmer ballast High Power Factor, Low THD; Energy-saving up to 15 ... :0086-731- 85505477Email: surre[at] intelligon.cnContact: surre Dimmable 400W Ballast for grow light Hydroponic