... from 1X20W to 1X40W 3.PC lamp holder Product Name: T-2 Magnetic(Electronic)Fluorescent Light FixturesSpecifications: 1) Use for: department, ... hospital, office, classroom, supermarket, workshop and so on. 2) Power: 1X20W, 1X30W,1X40W 3) Voltage: 220V,240V 4) Frequency ... or magnetic ballast, no noise, low loss, longer life time T-2 Magnetic(Electronic)Fluorescent Light Fixtures