... 100% luminance range being regulated continuously.2.Carefully designed by CAD, using imported Thick-film Circuit, quality components.3 ... 7.Will not burn in case of a damaged tube or without a tube.8.No disturbance to other ... over 400 thousand times, tubes 20,000 hours. Typical electronic ballasts: VoltagePowerRemark12Vdc15W, 20W, 30W, 40W 24Vdc15W20W30W40W 48Vdc15W20W30W40W 110Vdc15W20W30W40W ...