gday pooh,
well first of all the LEDs and circuit board (i cut 1 board into 2) and other bits came from Jaycar.
the amber LEDs are clear when switched off.
i actually discussed this with fellow TOCAU member D_ice before i moved forward with what ive been doing.
they have 3 types of LEDs at Jaycar, the prices are based on how bright you want the LEDs to be. if you buy 10 or more the price is cheaper. from memory, the LEDs i bought were around 90c each? but yea not 100% sure about that, but what i am sure of is the guy who served me showed me what all 3 types looked like when lit. i chose the second brightest, mostly because i didnt want the mirror indicators to be heaps brighter than my existing indicators.
theres no sure way of knowing that until i wired the thing up and once i wired it up to the car, i saw it was close enough match.
the most expensive LED they had was REALLY bright. the 2nd most expensive was sufficiant.
the reason i chose to DIY the LEDS instead of using LED strips is because i bought the chrome covers to begin with and i wasnt happy with how they would look if i had installed them. it would have been stuck on with double sided tape and it looked like anyone can just pull it off! although hilux's and landcruisers have chrome mirror covers as stock, im sure it would bring attention to my corolla since chrome covers are not common for corollas..
the original LEDs that came with the chrome covers were flat and were laid on a flexable circuit board which i could not find in any local or online electronics stores. I would have used the originals except half of the lights were BLUE. i could have used jsut the yellow leds and left the blue ones off, but it seemed like a waste and im a bit of a perfectionist so if i want something done a certain way, i HAVE to figure out a way to make it.
taking off the blue LEDS off the original circuit board would have been a good idea except i could not find clear + flat amber LEDs to replace them. so i had no choice but to go for the regular looking LEDs and they just would not fit within the space of the indicator lense.
heres the original LEDs and circuit board.
making the LEDs DIY style also made sure i can space the LEDs exactly where i want them. it would have been nice to fit 6 more LEDS on the circuit board but the mirror covers start to bend... the circuit board doesnt flex so i did what i could with the flat space that i had.