Modern light bulbs come in a variety of sizes and shapes. Depending on your light fixture, you might have different requirements. Before buying bulbs, you need to determine what cap type your light fixture or lamp is. Usually, you can find this by looking at the sticker placed on your fitting, or in the lamp's specifications/instructions. This pack of 6 LED light bulbs have an G9 capsule which are ideal for smaller intircate lamps and lights. These bulbs are 3W (equivalent light output to 30W standard bulbs) and give off a cool white glow (6500K). They use the brightest LED's to emit 300 lumens. Energy rating: F