LED capsule bulbs can be used to replace conventional capsule bulbs. They're the most compact LED bulbs we sell and are much more energy-efficient than halogen capsule bulbs. LED capsule bulbs have G9, G4 or GY6.35 pins and we've also included R7s bulbs here. In addition to their excellent efficiency, these LED capsule bulbs last a long time too. We've got a wide selection of LED capsule bulbs available, including dimmable ones.