electronic ballast voltage:110V~250V wattage:20W,30W,40W with long life-span 30,000 hours No stroboflash and noise. Item: Electronic Ballasts for 220V~240V Fluorescent lamps_T8Technical data:Item: SWBAT001Wattage:20W,30W,40WProduct size: 240 * 30 *13 mmVoltage: 110~250 vFrequency: 50/60 hzRated current: 0.09~0.15AG.W.: 5 KGPacking Size: 265 * 235 * 155 mmProduct characteristics:(1)Electronic ...