LED Capsule lamps are known for their compact shape, bi-pin socket and simple replacement. These lamps can even be placed in the most compact fixtures. Traditionally, bi-pin lamps are equipped with halogen technology but are now also available in a (dimmable) LED version. Always take a look at the size of the LED lamp, since it may differ slightly from the halogen version. We have four different sockets of LED capsule lamps are G4, G9, GY6.35 and R7s.