Blackt Electrotech Waterproof 230Volt Auto Day/Night on and Off Photocell, Light Sensor LDR Switch for Lighting 2 Pieces Pack

best ! gifted to electical contractor ! he was also happy !

Works perfectly fine, easy to assemble with little knowledge of electrical appliance. I connected this to my two gate lamp and now no longer need to switch gate lamp on and off every day. Even if i am away from home and traveling. The device looks nice even if it is hung outside on single screw. Two suggestions: 1. Keep the wire little longer, considering the fact that you can not keep sensor just beside the lights other wise sensor will never work and so for a very short distance i had to connect small 20 cm wire to extend it. 2. Both the sensor are tuned for different lux and so every evening first light starts and after few min the second one. This difference could be avoided. though it doesn't create much problem. Its working as expected since last week. Upade after more than a year-long One is still working and other one stopped due to rain water. I shifted the connection under she'd to protect. In short, it's not water proof

Good working

The connecting wires are not copper Since these are used mostly outdoor there is galvanic corrosion when connecting with copper wires. Please use copper connecting wires. Joining copper and aluminum creates severe electrical and mechanical risks: galvanic corrosion, thermal expansion mismatch, and oxidation. Together, these problems increase electrical resistance,

Excellent product, has been such a saviour. Need not bother anymore about switching on or off lights. 6 months on, and its functions flawless. Keep up the good quality.