'Permanent on' lighting

[TheOldFellow]

I need to put some lights in a short length of passageway in the house. It has no natural light. I was considering LED's wired 'permanently on' as cheaper than using a PIR.

Any suggestions as to fittings and lamps? There are no walls I can use so it has to be ceiling.

R.

[Bob Minchin]

Every watt of power used by your lighting costs over a £1 per year now

So a PIR taken off a £6.99 floodlight (LIDL,ALDI from time to time) will save you money pretty quickly. You can still use it to control LED lights for even more savings.

Bob

[Andrew Gabriel]

There's a bit of hallway in my house like that. I bought a fitting I liked, and then converted it to take a 10W 2D fluorescent with electronic ballast.

all depends what sort of lighting level you want and the size of the area concerned. The most efficient source is going to be a linear fluorescent and the smallest efficient one is the 14W T5 tube (around 100 lumens/watt) which is about 22" long. I didn't want such a bare tube, so I went for a 2D tube (about 65 lumens/watt) which fitted in the fitting I chose.

[Owain]

What's the standby consumption of a PIR?

Owain

[The Natural Philosopher]

Gotta be peanuts - a mA or two.

[Harry Bloomfield]

on 20/09/2011, TheOldFellow supposed :

Bulk head type LED emergency lights.

[Alan]

Honeywell are one of the few suppliers of light switching PIRs who have readily available data sheets. The PIR on its own is around 0.25 Watts.

I investigated some of the dusk to dawn photocell switches recently. These take around 2W on their own.

[ARWadsworth]

Yes, but if you use solar powered ones then you can use the output of the lights they control to power the sensor and the power will be for free!