BA15D Double Contact Bayonet Base
Shop our specialized collection of 12V Double Contact Bayonet LED bulbs, featuring the robust BA15D base. Easily identified by its two contact points at the bottom and parallel locking pins, this base is the modern, energy-efficient replacement for classic incandescent bulbs like the 1142, 1076, and 1176.
While found in select landscape lighting path lights and deck fixtures, the BA15D base is especially common in demanding marine, vintage RV, and specialty automotive applications where a secure, vibration-resistant connection is paramount. Upgrade to LED to reduce power draw and eliminate frequent bulb changes.