Energizer S4851 ECO 16W G4 Capsule Dimmable Halogen Light Pack of 2 Low voltage halogen capsule with G4 (two straight pins) push fitting. This lamp is often used in cupboard and under shelf / counter lighting and in modern multi-light fittings. Features: The Two Straight Pin ended bulb is designed to fit a standard G4 Fitting. This Halogen bulb produces more light output than an incandescent lamp of equivalent wattage, and has superior colour retention. The Bulb has the output of a standard 20w Halogen G4 bulb, but only uses 14 watts p/h Can also be used with a dimmer switch