chandra999777
New Member
hey i want help in light activated relay.plz see the link,in that ckt diagram was given. **broken link removed**
Here in my ckt i am not using relay instead want to make white led to be ON when it is dark.It worked but my problem is the output of the transistor is very low(i.e 2.5v) so the led is not brighter. I need at least 4.5v at the output. what kind of ckt will be needed to provide 4.5v at the output in order to make white led to be brighter.plz help me.
Here in my ckt i am not using relay instead want to make white led to be ON when it is dark.It worked but my problem is the output of the transistor is very low(i.e 2.5v) so the led is not brighter. I need at least 4.5v at the output. what kind of ckt will be needed to provide 4.5v at the output in order to make white led to be brighter.plz help me.