I haven't changed them yet. That one light must have seemed bright because the outside light was dark. Usually I can't tell what any of them are supposed to be telling me so I just ignore them. On my previous Convert I did switch them all for LEDs and it made a big difference. I ordered them from Superbrightleds.com but no longer know which ones I chose. Perhaps there is a thread here somewhere or Charlie might know. Good luck, and thanks.
I use these LEDs in the warning lights, installed them in 2017 and they're still working perfectly. Use the same color LED as the lens it's behind. I use a jewelers file to round off the sharp corners on the bottom so that they're easier to insert. They are polarity sensitive, so only work when inserted correctly.
https://www.superbrightleds.com/74-led-bulb-3-smd-led-miniature-wedge-baseIf you still have the original Bosch charging system and replace the charge warning light with an LED, you'll need a "bootstrap harness" from Greg Bender. The LED doesn't have enough resistance and the charging system... won't.

Edit: I use these LEDs in the signals:
https://www.amazon.com/dp/B07BXT4WRN along with this flasher unit:
https://www.amazon.com/dp/B07JFPXM21Taillight, they're bright enough that drivers stay back at traffic lights.
https://www.amazon.com/dp/B074GPX2Q8I have these driving lights mounted to the lower part of the crashbars:
https://www.amazon.com/dp/B06X19TGNDInitially, I used an Autopal H4 headlight with a (no longer available) LED bulb. I wasn't satisfied with the beam pattern, so bought a JW Speaker LED sealed beam from MG Cycle. It was $175 then and even more now.
https://www.mgcycle.com/index.php?main_page=product_info&cPath=37_154&products_id=5025 . There are less expensive LED sealed beam units on ebay and Amazon. I've installed several of these in customer's Loopframe Guzzis:
https://www.amazon.com/dp/B0BNT4V2VC No experience with how they illuminate the road at night though.
The stock Aprilia headlight unit is a masterpiece in over-engineering, and to replace the standard sealed beam is a PITA. W clips, e-clips, spring, screws galore... could have been much more simple. The JW Speaker unit required that I elongate some holes on the ring that holds the sealed beam.