Each bulb has a voltage of 220 Volts operating on 15W. Easily replace your refrigerators light bulb so you wont need to worry about not seeing whats inside. Easy to install, long-lasting and economical these refrigerator bulb replacement bundle will definitely help you save on repair and monthly electric bill Make sure this replacement bulb fits your refrigerator. Items are 4 x refrigerator OEM blue glass lamp replacement bulbs. Each bulb has a voltage of 220 Volts operating on 15W. Easily replace your refrigerators light bulb so you wont need to worry about not seeing whats inside. Easy to install, long-lasting and economical, these refrigerator bulb replacement bundle will definitely help you save on repair and monthly electric bill . Make sure this replacement bulb fits your refrigerator. Sub-Zero recommends use of bulbs on models prior to serial #4380000.