The ablaze 1s need their wire leads bent straight out and then bent slightly to the outsides of the base. Then you need to get them in the right way because they are polarized. Only 1 out of 10 ablaze 1's has ever worked the first time for me. After a little tweaking, 100% of them have worked. That being said, I prefer the 3's and 4's from that company. They work well and are bright without being overpowering.