As former part time 'white van man' I've followed a few bikes with 'mini' indicators, and frankly many, especially in the wet, ain't worth a carrot.. And 'smoked', even worse.
Not tarring all with the same brush, but if my safety depended upon clear notification of my intentions to other road users, I'd choose very carefully. What might look sufficient in your enclosed garage sometimes doesn't translate well in the real world.
Just my two penn'orth....