Wond3rboy
Member
Hi i was thinking of replacing as an experiment the bulb(one of those phillips electricity saving bulbs) in my "Electronics Shack" ( )with an LED light. What i have in idea is to use 8 10mm White LEDs(China) with 80ma current through them(checked their brightness already at this current) from a 1A 5V Supply. I am planning to use them parallely with current limiting resistors. The question i have is should i use PWM using a 555 and transistors(2N222A) for switching the LEDs or just connect the resistors and keep it simple?. If i use the PWM how much should be the frequency for the PWM? I am thinking about 60Hz? easy to do with a 555.