Blackt Electrotech Waterproof 230Volt Auto Day/Night on and Off Photocell, LDR Sensor 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.

I installed this product ( from this company ) more than three years ago on external lamp posts in my garden. Out of 6, two failed now after daily switching cycles through hot summer and heavy monsoons. That's better than expected and I would recommend this to anyone who wishes to have daylight/night switching without the headache of remembering to physically turn on the lights and turn them off every day. Just remember that they need to be installed so there is no other light ( street light ) falling on them otherwise the sensors get confused and start switching on-and-off continuously, or just remain off assuming its daylight.

100% outstanding product. The only thing to be kept in mind is that you should place it as mentioned by the manufacturer.... or place this device on the eastern side of your building (might have to pull wires , if the light to be used is at western or some far place... Placing at eastern side will turn off the light at around 6am and turn it on by around 6.30-7pm depending on the lighting at your area. Its working perfectly for me for past 2 years. Highly recommended. You can know the quality of the product by just looking at the quality of the copper wire used.

I purchased this item, and it failed within 6 months. It should last at least a year, otherwise it’s a waste of money. The product mentions a 1‑year warranty, but there are no vendor details or contact information provided anywhere. Very disappointing.