Christmas - Advent candle holder lamp. LED E10 3V 0.06W The lamps emit a warm and beautiful glow from a frosted casing. Voltage: 3 Volt AC/DC Power: 0.06 Watt If you build your own candle holder and use these lamps on battery power, the threads are - and the soldering iron + on the lamp. NOTE!!! These lamps DO NOT FIT ordinary 7-arm candle holders that you connect directly to 240 volts. This lamp is suitable for candle holders powered by a transformer that provides 3-3.2 volts where the lamps are connected in parallel (= other lamps light up when you unscrew a lamp) If your lamps are connected in series (= all lamps go out when you unscrew one) then the lamps are suitable for: 7-arm candle holders powered by a transformer that provides 21-22.5 volts. 5-arm candle holders powered by a transformer that provides 16 volts. The lamps are suitable for, among others, PIXIE candle holders.