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Question:

Solar Panel: Watts, Amps, Volts? mA?

What do these mean? I'm interested in doing a solar panel project. The problem is I know nothing about electricity, wiring, or panels so I've bought a small panel to experiment with first.I don't know what amps, watts, or volts are; what I should be reading on the batteries I will be charging? Or on the small appliances I will be running?The panel I bought has four settings:. 3V ---- 200mA2. 6V ---- 00 mA3. 9V ---- 50mA4. 2V ---- 50 mA(What is mA?)Also, will you give examples of what I can run with this? Make up any scenarios with whatever amps/volts/watts.

Answer:

mA means milliamps, i.e. 200 mA is the same thing as .2 amps. Amps refers to current and is the unit of measure for electrical current... Anyway, my point is, you are NOT going to be running ANY small appliance with a single solar cell. You might be able to run a small device that would normally run with a battery, but that is about all.
okorder / to see our solar panel project.
. 3V 200mA. mA (milliAmp) = 0.00A; Power = 3V x 0.2A = 0.6 Watts. 2. 6V 00mA is 6 x 0. = 0.6 Watts. 3. 9V 50mA is 9 x 0.05 = 0.45 Watts. 4. 2V 50mA is 2 x 0.05 = 0.6 Watts. With the 3 Volts one you could connect it to a flashlight light bulb, that's is about the max you can get out of it. With the light bulb, polarity doesn't matter, but if you power a small transistor radio with it, then make sure the + goes to the + and the - to the -. Reversing it wouldn't work and in some cases you could damage equipment.

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