26-03-2021, 10:40 AM
Jon, the answer is probably in the name "21W flasher". It is obviously designed to operate with 21W load and I wouldn't expect it to perform correctly with anything less that 15W.
I don't know what the 3W bulb issue is other than totally abnormal for any flasher.
I don't know what the 3W bulb issue is other than totally abnormal for any flasher.