LUMI JC10RGB, Replacement LED Bulb. High efficiency LED lighting for boats, RV or 12 volt cottages. It is very easy to exchange your conventional bulbs with LED bulbs. All bases and connections are compatible. Simply match the bulb base. Ecological 12 volt unmatched energy output. Emits no heat, lasts 50,000 hours. Emits no frequencies which interfere with electronics. Resists shock and cold. JC10-RGB changing bulb, 1.2 Watt, G4 side pin, Red/Green/Blue color. Colors change approximately every 10 seconds. Nine LED’s. Not polarity sensitive. Overall dimensions: 1-5/8″ L x 1-1/4″ W x 3/8″ H.