low voltage ACor DC electronic ballast AC 12V-220V /DC 12V-220V 50-60Hz AC or DC Input voltage is 12V, 24V, ... one,two pieces White iron shell Use IC to shake circuit, preheating start, tubevoltage is the sine wave, effectively ... wrongwiring Protection against low and high voltage Use IC to shake circuit, products is goodperformance & high stability The advantages of low voltage,safety & highstability ...