LED button battery candle light is supplied by the one button battery 3V, offering red, green, yellow, white alternative colors, each salver contains 2PCS with long life span and each battery 3V can light 45H continually. Caution: 1, such product uses one CR2032, 3V, and DC button battery 2, indoor usage 3, do not put the battery in the fire or short-circuit with negative and positive polar