1. It conforms to the international standard of G4 lamp base. It uses 12 pieces of 5050 SMD LEDs, with a power of 2 watts, a voltage of 12 volts DC, a brightness of 120 lumens, a beam angle of 180 degrees, and a color temperature of 2700K warm white light. It is generally non - dimmable. 2. These G4 LED lights can offer sufficient lighting for the room and can replace 15 - watt T3 halogen lamps, xenon lamps, and incandescent lamps. 3. It is usually non - dimmable. Attention: It is advisable not to use them with a dimmer, as the dimmer may cause the lights to flicker or produce noise. 4. They can be used in trailers, RVs, cars, ships, etc. They are also suitable for ceiling lighting in halls and bathrooms, kitchen lights, Malibu landscape lighting, accent lighting, cabinet lighting, chandeliers, table lamps, pendant lights, track lighting, wall lamps, etc. 5. Installation is relatively simple. The package contains 10 warm white G4 LED lights. If you have any questions, please send us an email in time, and we will try to solve the problem for you.