Please note: BAY15d bases have pins that are indexed, meaning one pin is located higher up on the base than the other. For additional specifications, please review the item specifications. Base: BAY15D Length: Wires: 150 mm BAY15D 1157 Bulb Socket Lamp Holder 1156 Socket P21/5W Adapter Base LED The Autolumination provides Bay15d 1157 Bayonet OEM Visual Bulb Specifications Wattage Amperage Lumens Avergae Life and Cross Reference. BA15 Bayonet Base Sockets - Wired Super Bright LEDs Please check to ensure that your bulb uses a BAY15D base, lightbulb list is provided for reference only - we make no guarantee for fitment or electrical operation BAY15D Bayonet Base Bulb