Over time magnetics become louder, produce less light, emit more heat and use more electricity. Lumatek dimmable digital ballasts have four settings to control the light output from the ballast, 360w, 400w and 600w settings for MH and HPS lamps and also a super lumen switch which can only be used with an HPS lamp. We also recommend using a 400w MH lamp with the 400w setting on the ballast for growing your plants and then change your lamp to a 600w HPS and the setting to 600w for flowering or fruiting your plants. The super lumen switch can also be used in the last few weeks to help boost your plants. This is fully adjustable digital ballast from lumatek available in: 250w, 400w and 600w.
"Dimmable" with SUPER LUMENS SWITCH! Dual voltage - 120/ 240 volt. Completely silent (no humming - no vibration). Small compact design - under 16 lbs. This item is in the category "Garden & Patio\Hydroponics\Grow Lighting & Accessories\Grow Light Kits".
The seller is "a1mhydro" and is located in this country: GB. This item can be shipped to United Kingdom, Austria, Belgium, Bulgaria, Croatia, Republic of, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Guernsey, Iceland.