Electrician-free conversion to motion sensing lights

[paulrockliffe]

Just a quick question; I've got a lot of lights in places that are often left on and then used infrequently that I'd like to put on a motion sensor, so that they switch on/off as required.

Because of the number of units I'm talking about I suspect involving an electrician will be a costly exercise, so i was wondering if anyone was aware of any plug in products that can sit between bulb and fitting (strip lights too) to add this functionality?

Cheers

[Brite spark]

Are the lights already on plug in ceiling roses?

Getting a plug in unit may prove difficult or impossible, some lights do have a pir built into them from new but for that you would probably be looking at new lighting.

If the switches are near the light/area to be lit you could get a pir or timer if not that close as a straight swap for the switch.

Failing that you are looking at getting an electrician.

how many lights are we talking here?

commercial premesis I presume?