This range is rated at an economical 5w per lamp. It is compatible with most trailing edge dimmer systems. The unique thermal plastic housing is a better heat conductor than die-cast aluminium allowing for maximum heat dissipation. The white plastic diffuser is not only aesthetically pleasing but also gives the lamp a 270 degree beam angle. The dimmable LED candle bulbs carry the Firefly 3 year warranty for your peace of mind.