Yes, I use LEDs for all three. The turn signal won't work by simply installing an LED - you also need two diodes. Also, you have to reverse the wires as they are not positive ground. I use LEDs that match the color but white ones work too. The color LEDs are nice, especially if the jewels are faded.The 2W bulbs are not bright enough in full sunlight. I put the cups on all three in a vain attempt to actually see when Ive
left the indicators on. I do this all the time as an old timer Ive never had indicators before. Hard to adjust to new things when
old!
Is there an LED replacement with enough power to obviate this?