Grumpy_Mike:
Why is it so ? I always used LEDs directly. I really don't know the potential problems ?
The problems that you are destroying either your LED or the thing that drives it.
Read this:-
http://www.thebox.myzen.co.uk/Tutorial/LEDs.htmlThanks for the link. So now you need to post what you are doing. A good quality photograph, less that 1000 pixels wide woul be a good start.
Ooh I didn't know it is that serious. Thank you!
Below the photos of the setup and thank you for your interest