Ballast Kit, Sodium, 400W, Multi-Volt hydro-components 5 ml per liter of

5 ml per liter of nutrient solution

therefore the results aren't as beneficial

auto-dim at set temp

Autopilot's digital CO2 controller measures the carbon dioxide level in the grow room and automatically turns on and off the CO2 device to accurately keep the carbon dioxide PPM at the desired level

automatic calibration with automatically temperature compensated measurements

Ballast Kit, Sodium, 400W, Multi-Volt hydro-components 5 ml per liter ofBallast Kit, Sodium, 400W Multi Volt Best choice for DIY grow room aficionados! Whether you are wiring your own first ballast setup or performing a complete overhaul of your existing equipment, this kit offers all you need, including the right capacitors and transformers. Rely on Hydrofarm for premium quality North American made ballast components. All parts are UL recognized. Ballasts include welded on brackets for easy replacement mounting. All