Is it me, or has there recently been a sudden increase in the number of people wanting to use PIRs because having to flick a switch when you enter a room is so 20th century?
PIRs
- Thread starter ban-all-sheds
- Start date
I think the main reason is not that they cannot be bothered to switch the light on when entering a room/area, it is the switching off of the light when exiting a room/area that is the issue!
OK.
Is it me, or has there recently been a sudden increase in the number of people wanting to use PIRs because they are too stupid to use switches?
Is it me, or has there recently been a sudden increase in the number of people wanting to use PIRs because they are too stupid to use switches?
Quite possibly. Although I think another possibility might be that be that there has been an increase in the people who pay the leccy bills wanting to use PIRs because they believe that the people who use the lights but don't pay the leccy bills are too stupid and/or lazy to use a switch. (Or simply don't care because someone else is paying the bill)
K
kai
The best bet is to have a PIR in the ceiling controlling that room's light, so that the light is only on when occupied (plus a short time delay of say three minutes afterwards).
LED lighting can be safely controlled by PIR (I have one in my entrance hall, it switches on as we enter the front door, but shuts off three mins after the last person leaves).
LED lighting can be safely controlled by PIR (I have one in my entrance hall, it switches on as we enter the front door, but shuts off three mins after the last person leaves).
Have you been to the beach?
When you can light a room for 50 hours for 10p, using 20W of LED or CFL in a reasonably sensible installation, I am not really concerned if people leave lights on a bit. In this house, hall, landing, porch and living room are lit continually from sundown until after bedtime.
I certainly don't think that buying and installing PIRs makes good economic sense, though they might be fun for people who like to tinker.
- Joined
- 27 Jan 2008
- Messages
- 27,521
- Reaction score
- 3,325
- Location
- Llanfair Caereinion, Nr Welshpool
- Country
I have worked in offices with PIR controlled lights, and class rooms with PIR controlled lights and in both cases in real terms a failure. Every one knoew PIR controlled so no one turned off the lights, relying on the PIR, but it was to to around 15 minutes so really too long to save money too short to ensure the lights did not go off with a class room of students or an office full of workers.
however in corridors they worked well, you would see it being lit up progressively as you walked along it. In the home I can't really think of a room where they would work. I have considered them in my mothers house, disabled so hard to reach some of the old switches. I found a unit my dad I bought battery operated so tried as a test. Total failure simply not enough control either wakes up people as they move while asleep in bed or fails to come one when wanted. Idea was to control hall way, but just did not work.
Outside it works well, by time one reaches a structure which could have a switch it's a bit late. And at 5W do not care really if it sticks on all night. May be one would work in the kitchen where we have no seats so if in the room you are moving and it would help when walking out with hands full of coffee not to have to put down the cups. But any room with seats or a bed forget it.
however in corridors they worked well, you would see it being lit up progressively as you walked along it. In the home I can't really think of a room where they would work. I have considered them in my mothers house, disabled so hard to reach some of the old switches. I found a unit my dad I bought battery operated so tried as a test. Total failure simply not enough control either wakes up people as they move while asleep in bed or fails to come one when wanted. Idea was to control hall way, but just did not work.
Outside it works well, by time one reaches a structure which could have a switch it's a bit late. And at 5W do not care really if it sticks on all night. May be one would work in the kitchen where we have no seats so if in the room you are moving and it would help when walking out with hands full of coffee not to have to put down the cups. But any room with seats or a bed forget it.
Well - it might be an impressive trick to make the lights come on whilst standing very still....Not much chance of a romantic evening with them switching back on as you get down to the nitty gritty.
Get the ones they can hear you as well, so you clap your hands and the lights come on. I got a little bunny that does that and starts doing Michel Jackson.
We have one in the downstairs loo, and are putting them in the new bathroom as well.
They avoid grotty pull cords.
We've not had an issue, though the ones at work do tend to flick off too quickly. I think it's something to do with the spacing, ie miles apart on the ceiling.
They avoid grotty pull cords.
We've not had an issue, though the ones at work do tend to flick off too quickly. I think it's something to do with the spacing, ie miles apart on the ceiling.
Imagine my surprise when, "quietly contemplating" at our local Chinese restaurant , the lights suddenly went off after about 4 minutes! Turns out they'd had PIR's fitted in the toilets since my last visit. Only problem was, nobody else walked in and the PIR was not in line of sight from the cubicle.
DIYnot Local
Staff member
If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Are you a trade or supplier? You can create your listing free at DIYnot Local
