Steamer posted:George an 1156 bulb is/was commonly used in automobiles for the back up lights or any single contact light. 1157s are used for tail/brake/turn signals.
Yep, but the base became a standard that is used in microwaves and landscape lights. The 1156 cross references to a BA15s bayonet base. I don't think I would have got the selection I did and the ability to buy a warm white LED if it wasn't used in the landscape lights. (I had to buy a 5 pack of course. So if anyone needs one, let me know.)
George