I did have a couple of issues with the subject direct replacements. I had incandescent lamp posts powered by 14 VAC through a dimmer. I changed to direct replacement LEDs and some of the LEDs didn’t work because I didn’t pay attention to lamp post wiring polarity since it was AC. The dimmer output was chopped and basically DC. But it looked like I had bad bulbs at the start.
I also had what looked like shorted direct replacement LEDs. Turned out it was the lamp post socket. On some sockets the center contact was slightly off center. The direct replacement LED base created a short with the offset socket contact. No bad LEDs here either just bad lamp post sockets.
