PV Gap

Becky Said:

How can I extract current from Solar Cell?

We Answered:

There is lots of ways you could do it. Simply connecting the leds across the solar cells will cause them to light up. However, such a method has a few problems. The leds will only light when there is light illuminating the cells. Voltage fluctuations will be so great, you will almost certainly blow the leds. Light from the leds will vary from nothing to max. In other words, no control.

Using any storage mechanism would be preferable. You could use capacitors, inductors, gravity, inertia to name just a few. Most have their own problems with just how to extract and control the flow of energy. Far and away the simplest is to use the battery with a charge controller (only really needed if you have large panels and well charged batteries).

For your application, use the smallest SLA 12v battery you can lay your hands on. Then use a resistor in series with the leds to control the led current.

Corey Said:

I am looking for bug lights to go out in my backyard on my fence post?

We Answered:

Here you go.
http://www.mosquito-zapper.com/bug_zappe…