... 3.The light is downy electronic ballast for fluorescent advertising light-boxSpecifications1) T4/T5/T8 electronic ballast 2) good quality without noise ... yearPacking: each in a color box, 100pcs per cartonelectronic ballast M0delWattdimensions in mmdimensions in cm)YL40-2E2*36W153*43*30130 ... are a competitive factory specializing in T8/T5/PLL electronic ballast from 8w-58w,with a lamp,two lamps,three ...