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Are all LEDs the same quality?
rackoon:
Does any one know if all LEDs are created equal. I want to lite up my new clear button and it seems that one can buy a lot of leds from Taiwan for real cheap off eBay. Are these total crap or are all leds created equal.
cholin:
No.
MCD is the brightness, that's a big factor in LEDs. For lighting up buttons, most times they're too bright, so go on eBay, but 100 for 5 bucks and you will STILL have to file them down to diffuse the light because they're too strong for buttons.
ShinAce:
No. All high intensity(clear bulb) will handle 20ma nominal, usually 25 max. For general use, they're all comparable. However, some companies manufacture leds with currents up to 100 mA, laser led's, and much more.
edit: mcd is not necessarily the best measure of brigthness. You need to also look at the angle. Bigger angle and low mcd = lots of light overall. A tiny angle and high mcd = concentrated light, possibly too concentrated.
cholin:
Yeah, but for general purposes, youre lighting a button and the material inside the button will reflect some light towards the center.
Not to get into physics and crap, but in general its MCD... and get el-cheepo ones because they're more than enough.
rugby1:
I bought 50 LEDs (10K MCD) on Ebay for $ 0.85.... very very bright, but I just grabbed some fine grit sandpaper and scuffed them up and they light my Happ Translucent buttons up perfect. I would recommend 7 to 8K MCD though.... 10K can be a bit much
These were fine... they all have worked (except the 2 I burned out by plugging them into my 12 v instead of 5 v....oppps) ;)
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