Main supply to led

Set the capacitor to about 5 mfarads to keep the voltage ripple manageable. Just some things to point out here, the main resistor has 400 milliamps flowing through it at 226 volts, so, p=iv, .400*226=90.4 watts of power being dissipated as waste heat. You would also need a 100 watt resistor in order to handle that. Why the 226 volts? That's a random number. You could just use a transformer to step down the voltage, send it through a full wave bridge rectifier, and have a voltage regulator to say 5 volts, have each led in parallel and a 250 ohm resistor to limit the current at 20 milliamps. This would be more practical to build, it would make the voltage less, less waste heat, more efficient, and if one of the LEDs blew, then the other ones would all still stay lit.

Sorry, the resistor would need to be 150 ohms for each led.

Where do you find 350ma LED's

I didn't realize those were set to that... holy cow... I would like to know where you find those too. Must be industrial grade lol.