12V AC/DC G4 LED Lamp: The working voltage of our G4 LED lamp is 12V AC/DC. The marked capacitor voltage is 16V. It is not the working voltage of the LED lamp. In order to extend LED life, capacitor voltage should be higher than actual working voltage. EYE PROTECTION: Non-dimmable, 6000K cool white light, 82+ CRI, beam angle 360. led g4 bulb can be immediately put into full brightness, no flickering, no radiation, no buzzing. Very high color rendering index (Ra> 82) for a pleasantly cool white glow of 6000k. CE and RoHS certified. Easy installation: 3W g4 led bulb is not dimmable, please do not use it with a dimmer. Standard G4 lamp base, easy and quick to install. Size: 37*10mm, please check the bulb dimensions before purchasing HIGH PERFORMANCE: AUTING G4 LED Bulb, G4 bulb silicone body has good heat dissipation and transmittance of light is very good, effectively reduce light attenuation, improve product life. Wide Application: G4 led bulbs ideal for use in cabinet lighting, lighting kitchen wall sconces, ceiling lights, table bulbs, accent lights, screens and landscape lighting.