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How to make a fast blinking LED bike light

Step 2Choosing the LED

Choosing the LED
There are lots of LEDs out there. 10mm,8mm,5mm,2mm,red,blue,green,yellow,UV.......

For this project I suggest 10mm LEDs, which color is up to you.

Here you can buy LEDs

http://www.phenoptix.co.uk/
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3 comments
May 15, 2010. 1:49 PMKosre says:
I agree with peterlonz. Not to burst your bubble, but just saying a 10 mm LED doesn't really cut it. What's the forward voltage and most importantly when dealing with resistors, the current? These variables are highly dependent on which resistors to use.

Apart from that, awesome tutorial, keep up the good work!
Mar 24, 2010. 8:23 PMpeterlonz says:
You say you will help in the choice of LED but you suggest only that 10mm size is used.
You don't say why, or indicate the preferred forward voltage, or the best mcd rating.
Also I note that waterclear & diffuse are two types with significant price differences, does it matter?
Good instructable, thanks.
Peter O

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