Also, there are 24V and 12V flashers on pinbot. If I recall -- the ones behind the face on the backbox are 24V as are the ones in the face on the playfield. You can use auto LEDs there as they are often 24V. Here is a link to a post for flashers I used in mine: https://pinside.com/pinball/forum/topic/pinbot-fans-and-owners-club/page/28#post-3522860