Electronics > Projects, Designs, and Technical Stuff
connecting a light sensor to a lamp outside?
Mr.B:
--- Quote from: Gyro on May 06, 2019, 08:04:11 pm ---... although it doesn't really make a difference in the case of a simple lamp....
--- End quote ---
Unless the lamp is ES.
In New Zealand the centre pin must be phase and the outer threaded ring must be neutral.
Other countries may or may not have this requirement.
Gyro:
Very good point!
james_s:
I agree that this sensor doesn't really look like a great physical design. I think I would cut a hole in a box and seal the sensor in it so that the base and wiring is concealed. You can also get compact photocontrols with the sensor in a threaded fitting that pokes through a hole in the light fixture or junction box they are installed inside. The USA color coding on a device sold for the 240V European market does not instill a great deal of confidence either. Might be worth having a look inside the thing to see if it's reasonably constructed.
Gyro:
There's also the issue that the short wires are going to put the sensor right next to the lamp - the OP could well end up with a flasher! :-\
soldar:
--- Quote from: Gyro on May 06, 2019, 07:19:53 pm ---He's following the US standard where Black is Live and White is Neutral.
--- End quote ---
I know what the US colors are. I was asking about the colors of the wires he added in his diagram.
The device is for 220 V but the colors are for the US market. The added cable colors should be for the country where the OP is located.
Seeing the questions being asked by the OP my advice would be "don't do it". If he insists then "Don't do it alone, have someone else watching you and with a phone in hand ready to call the fire department or the ambulance ... or both".
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