... 32*50mmTechnical Index:CE Specifications: Electronic Low profile T8 super slim fluorescent fixture lamp ... lighting, with reflector board design.Watts: 1*10W, 1*15W ... , 1*18W/20W, 1*28W/30W, 1*36W/40W; Voltages: 110V~127V, 60Hz or 220V~240V,50Hz.; Light Source: T8 ... painted metal housing box, build-in electronic ballast, clear thin reflector board, repid start, ...