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 ES / E27 (screw cap) which are ideal for larger household lights. These bulbs are 6W (equivalent light output to 60W standard bulbs) and give off a warm white glow (3000K). They use the brightest LED's to emit 500 lumens. Energy rating: F