I just changed the 400W bulbs on the old ones as they were dead.
The new ones came from Collingwood Lighting.
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The new ones came from Collingwood Lighting.
That's brave of you. Does that include your labour for fitting replacements? Hiring a lift etc?
I see LEDs of all sorts failing all the time. Including council lamp posts going into strobe mode.
Kayos
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It's what we have to do.
Just looking for a datasheet on the 1000w fittings we install on pitch floodlights, metal halide out and led in, 60% energy saving according to my spreadsheet, however if I find the info I will share it
julianthegypsy
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And the external lighting just to show the building off. A huge amount of power wasted and massive light pollution. Horrible.
LEDs have the advantage if the lights are going to be auto switched. And they are so easy to install.
But the actual savings are a lot smaller than people think.
I have also got quite a few LED tubes installed - and again the efficiency is very similar to a standard tube.
I think people make the mistake of ripping out a load of old lights that are way past their best and maybe very orange in colour - and then have fancy ultra white LEDs installed and think they are so much better. They are not comparing like for like.
A 1000W metal halide
110 lumens per watt
100000 Lumens High Power LED Flood Light
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90 to 100 lumens per watt
Better quality stadium lights
110 lumens per watt - exactly the same as the metal halide.
So not exactly talking nonsense am I?
110 lumens per watt - exactly the same as the metal halide.
So not exactly talking nonsense am I?
J1nx
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I thought we were further ahead with LEDs, I just quickly checked some IKEA ones I put in a floor lamp back along and they appear to show a touch over 160 lumens per watt and cost sod all. Sure Philips put out specialised efficient versions now, iirc big clive on YouTube has some videos up.
Normal ikea led bulb
Normal ikea led bulb
Kayos
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I meant saying LEDs use more energy than the old lamps, that is utter nonsense
I think regarding general units it may be an insurance thing , a unit near me was broken into , the guy fell in the inspection pit , broke ribs , legs etc and sued the company . So now their insurance company told them they have to have lights on so accidents can’t happen …
Make of that what you will , but your electric bill is less important than some scrote trying to steal your stuff !
julianthegypsy
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Fair enough, but surely the scrotes aren't going to break into the tenth floor? Security is one thing, but lighting up a ten storey building like a Christmas tree is madness. Plus, Christmas trees have little twinkly lights. We don't normally surround them with floodlights!
daleyd
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I seem to recall that you can also usually use much smaller leds compared to metal halide etc because their light is directional - as opposed to needing a reflector etc which reduces the efficiency
Well my 400W metal halide bulbs with reflectors seem to be a tad better than the 400W LED ones. I used a light meter to check. LEDs bright directly underneath but off to the sides the metal halide was better.
Tbh I would rate them equal.
What I actually said was
"Believe it or not the LED lights are no more efficient than the old sodium ones."
daleyd
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other people have different experience- it was discussed on here a while back - it was actually your thread, where 400w MH had been replaced with 120w led and the led were deemed to be better…
Metal Halide or LED
I need to replace 3 lights in the warehouse. They are 400W metal halide GES 40mm. They have lasted about 10 years or more so no complaints there! I have been looking at LED replacements but the brightest I can find are 120W claiming 16,000 lumens. The metal halide bulbs are 34,000 lumens - a...
www.mig-welding.co.uk
but you obviously don’t agree so I guess you should probably stick with your 400w units.
It has been 5 months since I fitted the lights.
I still think the same.
I was referring to factories / work units , I am with you on offices and alikes .. seems a crazy world we live in . Let alone the light pollution , I can’t see what sense there is to just blow money .
My local town , ten miles away has a floodlit football pitch , and it’s hidden by hills / lane contours , but on a clear / slightly cloudy night , i can see the light / haze . I don’t see why they are on all night , apart from vanity
Sadly I think LED lights have a lot to answer for. People leave them on all night as they think they are so much cheaper. Defeats the energy saving potential sadly.
Warehouse next to mine replaced his old auto floodlights with new LED manually switched. They are on all weekend even in the day.
His answer was they were so much cheaper to run there was no need to turn them off
daleyd
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Yes it’s those pesky efficient lights that are to blameSadly I think LED lights have a lot to answer for. People leave them on all night as they think they are so much cheaper. Defeats the energy saving potential sadly.
Warehouse next to mine replaced his old auto floodlights with new LED manually switched. They are on all weekend even in the day.
His answer was they were so much cheaper to run there was no need to turn them off
In your friends case if it’s actually costing him less to run them than his old ones, despite leaving them on all the time then you do realise it’s still saving energy?
Obviously not as much as if he turned them off but the simple fact is if he’s paying less, then that’s less energy consumed. If he’s paying more but thinks it’s less then he’s simply stupid and I can’t see how that’s the fault of a bulb.
Kayos
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BBC News - UK’s nuclear power push may add to energy bills, minister says
Add to energy bills in the short term, but no time frame specified. So we subsidise nuclear at a time when bills are high and millions are struggling?
Another well thought out plan. I bet those moaning are the same ones who can't even be bothered to learn how to cook a meal for 30p....
(I am far from anti nuclear, this just shows how out of touch this tory govt is)
UK’s nuclear power push will add to energy bills, ministers say
Kwasi Kwarteng says there may be a "small effect" on energy bills under a new nuclear funding model.
www.bbc.co.uk
Add to energy bills in the short term, but no time frame specified. So we subsidise nuclear at a time when bills are high and millions are struggling?
Another well thought out plan. I bet those moaning are the same ones who can't even be bothered to learn how to cook a meal for 30p....
(I am far from anti nuclear, this just shows how out of touch this tory govt is)
