The Atomic LED bulb delivers unbeatable brightness that stands in a league of its own. CAN bus compatible and suitable for both 12V and 24V systems, it’s a powerful, plug-and-play upgrade for indicators, brake lights, or reverse lights. Boasting an Incredible 1500 lumens. The Atomic 1156 is Built for performance, reliability, and maximum visibility.
Feature
BA15S (P21W / 1156)
BAU15S (PY21W / 7507)
Pin Position
180° apart (straight across)
150° apart (angled offset)
Contact Type
Single contact
Single contact
Base Diameter
15 mm
15 mm
Socket Fit
Standard bayonet
Offset bayonet
BA15S has pins directly opposite each other, making it suitable for sockets with symmetrical slots.
BAU15S has pins at a 150° angle, designed to prevent incorrect installation in sockets meant for amber bulbs.
These bulbs are not interchangeable due to their pin orientation. Even though they share the same diameter and wattage, the physical design ensures they only fit their designated sockets.
