... housing without fan.ballast for Plant Grow light and Indoor GardingHi-intensity HID Grow Light Hydroponics ballast, digital ballast for HPS ... indirectly ODM/OEM for Philips, OSRAM etc9. We are light power supplier for EXPO Shanghai10. Annual output: More than ... MH150W, MH250W, MH400W, MH600W, MH1000W,MH200W-AC110V (WARM BOOT)HID seriesHID35W-DC12V, HID35W-DC24V, HID35W-AC110VHID50W-DC12V, HID50W-DC24V, ...