iImage Information

I recently bought a few LEDs from a friend, and he was saying how they are super bright blah blah blah. So I decided to find out for myself how bright they really are. So hooked them up to my PSU and was blinded but the brightness. Literally had spots in my vision and had trouble focusing for a few seconds. And so the idea for the led flash bang(minus the bang) was born.
Step 1The Theory
The electronics are simple:
A large capacitor, or several would be used to store the charge.
A relay used as a switch.
Timing circuit(could be based on the main capacitor voltage)
All this build up and no release!
Thanks for the comment, I actually modified the design because the energy(in the capacitor) runs out too fast or the timer is too short, so I am going to make another instrucatble with another chip that should work better. I'll try get a vid of this one in action however just for you.
G'day