This socket is placed between the main socket and bulb, on and off automatically depending on the brightness of the environment. It has input to a standard bulb and maximum capacity of 100 Watts.
Requires that the person who wants to build this device, have basic electricity, electronics and safety knowledge, as well as, you possess a digital multitester. No batteries required.
Electronic devices are available in a store of electronics (such as STEREN, for example), adaptor for socket at any hardware store, as well as welding, and solder paste.
Step 1: Parts.
1 TRIAC 4A 600V (2N6075A or similar)
1 Capacitor 0.1 uF 250V
1 resistor 1W 56KΩ (or an arrangement of resistors that provide the approximate value)
1 photocell resistive 5 mm
1 double socket adapter contact (without chain)
1 soldering pencil
1 digital multitester
Step 2: Electronic Circuit.
Then, when the photo cell does not receive sunlight or artificial light presents a very high resistance, and is as if it were disconnected from the circuit, and has no influence, and electric current flows into the DIAC (diode in alternating current), through resistance and capacitor, that triggers the TRIAC, allowing the floodlight to be light. When the photocell if you receive direct sunlight, dramatically lower its resistance and leads the current mentioned towards the neutral of the electrical installation and the TRIAC is it blocks, turning off the floodlight. The function is automatic, as long as the normal switch of the floodlight on or activated.
Step 3: Assembling the Electronic Circuit.
Devices are placed and its terminals are rolled, and then welded the pencil soldering iron. The recommended sequence is:
TRIAC to DIAC, Capacitor to DIAC + TRIAC, Resistance to TRIAC + DIAC, and finally, Photocell to TRIAC + DIAC.
IMPORTANT: be careful not to short circuit between the electronic components.
Step 4: Disassembly of the Adaptor Socket Double Contact and Preparation.
Second, remove carefully the upper contact of the adapter with a small flat screwdriver. We separate the 2 parts of the adapter as shown in the figures.
Also, a hole of 5 mm is made for that photo cell comes out of an adapter.
Step 5: Welding Parts.
Finally, join the 2 parts of the adapter carefully, screw is placed and put the top contact, with a flat screwdriver.
Step 6: Final Considerations.
Finally, we put the bulb on the socket and connect it to the socket stream where you want to locate the light, and check its correct operation.
IMPORTANT NOTE:This socket does not work with FLUORECENT LAMPS, only with incandescent bulbs.
I wish you good luck in the manufacture of this system of energy saving.