Feature:1. Multi Purpose: LED flashlight bulbs can be used to replace indoor lights, bicycle lights, flashlights, work lights, headlights, etc.2. High Brightness: LED flashlight replacement bulb high efficiency LED battery runs longer, the light is brighter, and the visual effect is improved.3. Easy to Install: 3V flashlight bulbs are easy to replace, unscrew the old broken bulb, remove the fixing rings, and then reassemble it to use.4. Low Power: Handheld LED replacement bulbs have a power of 3W, low power consumption, and can be used for a long time.5. Stable Light: LEDs adjusted by bicycle flashlight bulb greatly extend the running time and provide stable light.Specification:Item Type: LED Flashlight BulbsMaterial: Aluminum AlloyProduct Size: Approx. 23 x 9mm or 0.9 x 0.4inVoltage: 4.5VPower: 3WWeight: Approx. 9g or 0.3oz.Package List:1 x LED Flashlight BulbsNote:Please check the product size before purchasing, please check the battery polarity of your flashlight before ordering.