G9 Base, 4.5 watts dimmable LED Light bulbs without Cover, work on traditional dimmer which commonly mounted in the wall or for desk lamp. Using 24 pcs 5050 SMD LED (max 0.2 watt each LED), Dimensions: 31mm diameter, MOL 63mm. Floodlight with 360 degree, Light output comparable to 40 watt incandescent, Light output: Cool white 380 lumens, 90% more efficient than incandescent bulbs and Halogen bulbs traditional lighting, Lifespan of up to 50,000 hours means that equates to 18 years lifetime if turn on lamp 8 hours a day. Applications included: Home lighting, Residential Lighting, Commercial Lighting, Accent Lighting, Reading Lights, Display Lighting, Desk Lamps, Business Lighting, Security Lamps, Walkway Lighting, Illuminant Lighting, Hotels, Restaurants, Bars, Night Clubs.