This Harmony spare incandescent bulb is fitted with BA15d base 6.5W.This spare incandescent bulb is a lighting accessory for beacon and indicator bank.It is supplied 24V AC/DC.Its simple and modular design allows easy installation.It weighs 90g.It is compatible with Harmony XVD, Harmony XVP, and Harmony XVB.It is sold in lots of 10.