By covering the photo cell and if the relay coil doesn't work.
By covering the photo cell and if the relay coil doesnt work.
The photocell would typically control a relay. The power to the lamp would go to one pole of the relay and the lamp to the other. The common wire and ground would go directly to the lamp. The relay would be normally open and would close when the light energy on the photocell decreased to an amount that would trigger a circuit to close the relay.
Perhaps they are on a timer or photocell.
I might be wrong on this one, but I believe it is either a cell or a photocell. A cell would be correct, a photocell converts light energy into electrical energy.
Light heats a photocell, and the difference in temperature creates an electric current(:
You can buy 6v photocell dusk to dawn switches from Acetek photocells
it is detected 3minutes after you urinate on the test stick..... if it takes any longer than 4minutes then the test is not reliable as it could be faulty... the pregnancy hormone detected on a test will then last/stay on the test for how ever long you keep the test!
the roof is slanted so you will need to put your photocell on the side of the roof where the sun is shining
Yes
light of a cell
This would be called a photocell.
When light strikes a photocell, the resistance decreases, allowing current to flow more freely.