G4 bulb with bi-pin is designed for most vehicle lighting, like RV, car, truck, trailer, boat, mainly used as ceiling lights, dome light, cabinet light, wall fixture, intensity LEDs produces bright and smooth pure white light, which is suitable for accent brightness for various lighting with the traditional halogen bulbs, this LED G4 bulb is way more energy saving and durable. ITo create the similar light output (150lumens), this LED G4 bulb just consumes 1/5 electricity power that G4 halogen bulbs bi-pin base is easy to install. Plug-and-play installation is to the 360 degrees illumination design of the G4 halogen bulbs, this LED G4 bulb provides directional illumination for areas where extra lighting is needed, which avoids inefficient light spread.