Maybe I was being a bit harsh on micro indicators, the ones you mention actually appear very good. They're not as small as some and have quite a few LED's. But looking at their size I'm not sure they'll fit without using the R&G adaptor anyway?
If you choose to fit LED's you'll probably need to fit a resistor too as the flasher unit won't normally work without sensing the impedance of a bulb.
If you want to see what mine looks like with standard indicators on R&G brackets it's on YouTube along with about 5 million others showing the same!
By the way, standard indicator bulbs are not halogen, that's only used in the headlamps,
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