【12V AC/DC】The voltage is 12V AC/DC. If you want to use standard 110-240V household lighting, please make sure the transformer is compatible with LED bulbs. Using halogen transformers can easily cause flickering. 【High Quality】The 3W G4 LED bulb replaces the 25W G4 halogen bulb, saving 88% energy consumption. G4 LED bulbs have a lifespan of up to 30,000 hours, more durable, saving the cost of replacing bulbs. 【40 x 13 x 10 mm】The standard double-pin G4 connector easily installs into a variety of G4 sockets. Dimensions 40 x 13 x 10 mm, slightly larger than G4 halogen bulbs. Please make sure the size fits your fixture before purchasing. 【Flicker-Free】 300 lm, high color rendering, flicker-free, uniform light to protect eyes. No UV or IR radiation. Do not use with a dimmer. 【Wide Application】 The G4 LED bulb is ideal for crystal chandeliers, cabinet lighting, landscape lighting, range hoods, ceiling lights, desk lamps, floor lamps, wall sconces, etc. Ideal for garden, patio, kitchen,