Please make sure what VOLTAGE you need before place the order. If your fixture is 110 Voltage and you buy 12 Voltage bulbs, the bulbs will be burn.If your fixture is 12 Voltage and you buy 110 voltage bulbs, the bulbs will not light up. Many customers complaint the bulbs burn or not light up, most of the fact is they do not buy the right voltage bulbs. We offer both 110 Voltage and 12 Voltage bulbs available. Please make sure what VOLTAGE you need before place the order. If your fixture is 110 Voltage and you buy 12 Voltage bulbs, the bulbs will be burn.If your fixture is 12 Voltage and you buy 110 voltage bulbs, the bulbs will not light up. Many customers complaint the bulbs burn or not light up, most of the fact is they do not buy the right voltage bulbs. We offer both 110 Voltage and 12 Voltage bulbs available.