Hey all!
I have chosen this site because it looks great with these small icons. English is not my mother tongue so sorry for the mistakes.
So my project is building an LED lamp (nothing special so far,huh?). I would like to use narrow angle LEDs (spot) and wide angles. I'm going to combine them to build a room lighting.
The second part is I'd like to switch them!I mean sometimes only the spots are lighting sometimes only the wide angles and sometimes both. It's because we don't need always the spots, only if we are reading sg.
I built this circuit http://www.reuk.co.uk/LED-Dimmer-Circuit.htm It worked perfectly!
One more important thing is the supply should be 19V or 20V because I'm going to use a laptop charger to convert 230V to 20V.
My question is I don't know what kind of timer,IC,transistor do I need.
If you have any idea feel free to leave a comment.
I have chosen this site because it looks great with these small icons. English is not my mother tongue so sorry for the mistakes.
So my project is building an LED lamp (nothing special so far,huh?). I would like to use narrow angle LEDs (spot) and wide angles. I'm going to combine them to build a room lighting.
The second part is I'd like to switch them!I mean sometimes only the spots are lighting sometimes only the wide angles and sometimes both. It's because we don't need always the spots, only if we are reading sg.
I built this circuit http://www.reuk.co.uk/LED-Dimmer-Circuit.htm It worked perfectly!
One more important thing is the supply should be 19V or 20V because I'm going to use a laptop charger to convert 230V to 20V.
My question is I don't know what kind of timer,IC,transistor do I need.
If you have any idea feel free to leave a comment.