the roof is slanted so you will need to put your photocell on the side of the roof where the sun is shining
yes because the apple will then stay pear therefore it wont go away.
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
Yes
light of a cell
yes it does because if the roof is flat the sound will spread around,But if the roof is curved it will take acouple seconds to travel
When light strikes a photocell, the resistance decreases, allowing current to flow more freely.
Silicon
# Turn off the power to the lamppost circuit at the breaker box. # Unscrew the mounting screws holding the lamp in place, and pull the lamp fixture from the post. Remove the wire nuts, and use the circuit tester to be sure the power is off. # Disconnect the wires to the fixture and the photocell. # Disconnect the locking nuts that hold the existing photocell on the post, and remove the photocell. If your lamp doesn't have a photocell, you'll need to drill an access hole in the post to install one. # Install the adhesive foam ring (provided with the photocell) around the mounting hole. # Run a bead of silicone sealant around the photocell where it will press against the interior of the lamppost. # Push the sensor through the mounting hole, and secure it with a locking nut. # Add silicone sealant inside the lamp fixture at any point where moisture might leak through to the photocell. # Connect the white wires from the power supply, lamp, and photocell together. Secure the connection with a wire nut. Connect the black photocell wire to the black power supply wire in the same manner. Connect the black lamp fixture wire to the red photocell wire and secure the connection with a wire nut. # Reainstall the fixture on the lamppost.
Does the sun's position in the sky affect the length of daylight ?
Professional photocell lighting is available from a number of websites. Some of the most popular include Arcadian Homes, Build and Lighting Showplace.
t has no roof