Solar Panel

[gobingo88]

Hello newbie here, I have a solar panel got it from a surplus shop. 4 separates solar panel it measure 12in x 35 in each. My problem is how will i know the total watts for this solar panel. More power and thank you

Manuel Morcilla III
Philippines

[russ]

Hi Manuel, I deleted the copy post you made in another forum leaving this thread.

Hope we hear from Sunking or Mike who can better reply to you.

[Mike90250]

for a home user, you can measure open ckt voltage, say 21V. Then measure short ckt amps (say 1.3a) Multiply together to get 27.3 Then take 2/3 of that, and you will be close 27.3 x .6666 =18.19818watts