Direct Current Photoelectric Switch 12v 24v 36v 48v Photocell Switch Dc 8v to 50v Dusk to Dawn Photocell Light Sensor for Outdoor Lighting with Automatic Illumination Detection Circuit (2)

I am a person who worked in electronics and electricity for over 40 years. And I was confused by the explanations for the connections of this product. The hookup is simple, once understood. Just forget their main schematic about main power to a DC Power Supply, DC+ to Black and DC- to white - that's plain wrong.CIRCUIT DESCRIPTION: o DC+ power (White wire) is supplied to the photoelectric cell. o DC- (or Ground) (Black wire) is supplied to the relay "Coil" and to the center tap of the SPST (Single-Pole Single-Throw) switch . o Output (Red wire) is an open circuit during the day and supplies DC- at night o Load is connected between the DC+ power and the Red wire (switched DC-) NOTE: The Load MUST share the same DC+ power as the DC power supply. The Red wire supplies the shared DC- or Ground connection at night.After testing (and ruining the first switch), I am REALLY impressed the operation of this device. During daylight, no measurable power (measured to .00 amps) was used for my solar, timed light and relay circuits. At night, my relay became energized and supplied power to the relay through the relay contacts to the timer board (.09 amps and .13 amps, when triggered by motion detectors). At night, when testing in my garage, the fluorescent lights did not turn the switch off! Wow! I have a very bright garage and the Photoelectric switch ignored the lights completely.I am tempted to give a 4 star rating because of the confusing explanation and wrong wiring diagram. Maybe there is some logic to the international color coding. In my experience, this is a mismatch of US color standards: o AC circuits use "black" as power; "white" as common, center-tap on a transformer; and "Green" for earth ground. NOTE: White is usually tied to earth ground, when using 110AC circuits and is referred to as the "Common" o DC circuits use "Red" as DC+ power, Black as DC- power, and "Green" for earth ground. I believe a DC switch, such as this, would be better understood in the US by the following color code: 1. Red = DC+ 2. Black = DC- 3. Dark Blue or Purple = Switched Ground.Because I probably don't understand coloring international standards for power, I am rating this as a "5 Stars", with the hope that they change the one wiring diagram that is so confusing!P.S. would appreciate a new switch for the one I ruined!

4 items provided and not one of them works as intended. sloppy manufacturing; soldered wires come undone

I've wired quite a bit of photocells before and these absolutely don't do it to work. The schematic is incorrect. But also try the schematics of the comments below and any other way you could think. Absolutely do not work..

The wiring diagram is very confusing both on the switch and the diagram that it comes on the switch.They are switching the ground side and not the positive side, wiring the hot side like you would a groundIts really simple if you follow this.Black is the input from a 12v Negative (-)sourceWhite is common HOT (+) from source and to the load (Important)Red is the ground (-) that goes to whatever you want to turn off during daylight hours and on at night

Happy with it

Having replaced the photosensor on the pole light in front of my house a few years ago, I didn't expect the new sensor to last a long time. I ordered two because it was simple to replace and figured if it was one of those things that you have to do every few years, so be it. Well this sensor stopped working immediately. The circuit did not close and there was constant power running to the light, just like the sensor I replaced. I finally got smart and just replaced the bulb with a dusk to dawn sensor built in. Problem solved.

The wiring diagram on the unit and in the posting are not correct. I fried one of the units following the wiring diagram. I will be returning them.