Created and designed to be used in conjunction with the Harmony XVB, Harmony XVD and Harmony XVP range of products, this incandescent bulb offers a stead signal with a 24V supply voltage. The bulb has a power dissipation of 6.5 W and has a complimentary bulb base - BA15d. This incandescent lighting is also used as an additional accessory for beacon and indicator banks.