Product name: Photo switch switch_x000D_ Input voltage: DC 12V_x000D_ Max load current: 10 A_x000D_ Body size: about 4.3 cm x 4.2 cm x 3.5 cm_x000D_ Used: Turns off when there is light, turns on when there is no light, no manual operation._x000D_ It is a light sensor switch of waterproof processing._x000D_ The sensor responds to light and dark, and controls ON / OFF of the switch._x000D_ LED lamps, energy saving lamps, fluorescent lamps, incandescent lamps, ventilating fan lamps, etc. can be used as control targets._x000D_ Since it is automatic control, it prevents forgetting to turn off the power, and it is also useful for energy saving._x000D_ You can use it for automatic control in street lights, schools, factories, etc._x000D_ It is also waterproof so you can use it for cars, boats, and a wide range of other uses._x000D_ Connect the black wire and white wire to the power supply and connect the red wire and the white wire to the load (electric light etc.)._x000D_ Wrong wiring will not work correctly. Please confirm the product image and wire it correctly._x000D_ Although this product can be used either upwards or downwards, so that the sensor can judge the light and darkness of light_x000D_ Please install it._x000D_ Color: white + blue_x000D_ Material: plastic + metal_x000D_ Package Contents: 1 * switch_x000D_ Only the above package content, other products are not included._x000D_ Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_