1. International standard G4 LED socket, 5050 12SMD and power of 2W. Voltage: 12 DC. Brightness: 120 lumens. Beam angle: 180 degrees. Color temperature: 6000K, cool white. Not compatible with dimmer switch. 2. These G4 LED bulbs allow for generous room lighting and replace halogen, xenon and 20W T3 incandescent bulbs. 3. NOT dimmable!!! Noticed!!! Do not use with a dimmer as the dimmer may cause the lights to flicker or make noise. 4. Replacement for trailers, caravans, cars, ships, boats, etc., as well as ceiling lighting in lobbies and bathrooms, kitchen lighters, malibu landscape lighting, accent lighting, lighting cabinets, pendant lights, desk lamps, chandeliers, track lighting and wall lights. 5. Easy installation. Package includes: 10pcs G4 LED bulbs with white light. If you have any problem, please email us in time, we will do our best to solve your problem.