The 5W G9 Dimmable LED Light Bulb by LiquidLEDs is 85% more efficient than CFLs and halogens, produces 530 lumens with only 5W, and has a long lifespan. Perfect for home or commercial lighting, it can be used for tasks, display, accents, security, etc. It's compatible with most dimming controllers, produces low heat, and contains no mercury.
Note: The bulb unsuitable for enclosed fixtures, as it needs ventilation for heat dissipation.