Great reviews on these 60W equivalent bulbs which produce a very good quality light (subjectively much brighter than a 60W filament). On offer at £7.99 for 5 bulbs (£2 off).
This is for the 9W warm white on a BC fitting. Also available in cool white and/or on ES fittings at the same offer price. Specified as 806 lumen with a colour temperature of 2700K, however they seem to have a slightly better quality light than a tungsten bulb and I'd wager most people would say they're noticeably brighter than 60W but still a pleasant warm white tungsten-like colour. Specified for 15,000 hours and with a 3 year warranty.
Top comments
qyestionmark
4 Oct 1614#37
There seems to be quite a lot of confusion here about efficiency/ratings. A little research shows that light bulbs are currently rated under EU Commission Delegated Regulation No 874/2012 (12 July 2012) (!), with ratings given for the power used by a bulb to provide a comparable light output relative to a standard incandescent bulb.
The bulb is A rated if it uses <24% of the power,
A+ rated if it uses <17% of the power,
and A++ rated if it uses <11% of the power.
There is currently no category above A++.
These Screwfix bulbs produce a luminous flux which is at least as good as a 60W bulb, and consume 9W. 9 is 15% of 60, so the bulbs are rated A+. Simples. (And they are hardly borderline in being rated that).
If, as many of us subjectively speculate, these bulbs are actually equivalent to 75W, then their relative consumption is actually 12%, which would make them borderline A++.
Note also that these bulbs have a diffuser - i.e. the coating on the globe which spreads the light out so that the bulb looks more like a regular bulb (and so you don't get the highly directional point sources that a LED produces). That hits the overall efficiency slightly.
A reasonably good 60W tungsten filament bulb apparently gives about 750 lumens. As I said in the deal description these are specified as 804 lumens, so on paper probably a little better than a 60W bulb. But as I also said, I suspect the colour temperature is probably also a tad hotter than an incandescent and I'd wager that subjectively most people would find them noticeably brighter than 60W. Wet finger in the air I'd say these are about 75W equivalent, but others might judge them differently. Almost all the BRANDED LED bulbs I've looked at need around 9W to generate 800 lumens so I don't think these are any less efficient. I'll wager there are a number of LED bulbs which claim a similar output from less power but I wonder if those would actually stand up to scrutiny?
EDIT: The one thing I'd add to the above is that there is an angular component to the measurement of luminous flux. These LED bulbs have a stated beam angle of 200 degrees, so the light they produce is far more concentrated in the hemisphere above the plane of the bulb than below (with the bulb upright like in the picture). An incandescent bulb with a similar lumen rating but with a beam angle approaching 360 degrees will have less light in the same hemisphere. The result is that these LED bulbs may *seem* brighter than a similarly specified incandescent depending on their orientation. That said, I am using these bulbs both upright in lamp stands and hanging in pendants and haven't yet found a situation where they seem poorer than a 60W incandescent, but that may not be true for all applications.
alexjameshaines
5 Oct 163#48
I've returned three sets (12 bulbs each time) for complete failure :/
To be fair all the dimmable ones I have tried make a horrendous buzzing sound. I bought the candle SES ones last week and ended up changing the dimmer for a standard switch instead. Same was true of the GU10 type too
I have the warm and the cool, the cool are very clinical.
devices
4 Oct 16#4
I love the cool ones. Bargain at this price, I need more. Very handy!
calvin22580
4 Oct 16#5
huangxq2
4 Oct 16#6
very good price.
TheVoice
4 Oct 161#7
These are good bulbs, had five in my flat for a while now, no issues.
bobo53
4 Oct 161#8
9w but only 60w equivalent, not efficient at all. Can someone confirm if in reality they are brighter?? it is rated at A+, it should give the equivalent of a 90w at least
stoopid_name to bobo53
4 Oct 163#10
Don't know about brighter but I can confirm that you are wrong.
qyestionmark to bobo53
4 Oct 166#19
A reasonably good 60W tungsten filament bulb apparently gives about 750 lumens. As I said in the deal description these are specified as 804 lumens, so on paper probably a little better than a 60W bulb. But as I also said, I suspect the colour temperature is probably also a tad hotter than an incandescent and I'd wager that subjectively most people would find them noticeably brighter than 60W. Wet finger in the air I'd say these are about 75W equivalent, but others might judge them differently. Almost all the BRANDED LED bulbs I've looked at need around 9W to generate 800 lumens so I don't think these are any less efficient. I'll wager there are a number of LED bulbs which claim a similar output from less power but I wonder if those would actually stand up to scrutiny?
EDIT: The one thing I'd add to the above is that there is an angular component to the measurement of luminous flux. These LED bulbs have a stated beam angle of 200 degrees, so the light they produce is far more concentrated in the hemisphere above the plane of the bulb than below (with the bulb upright like in the picture). An incandescent bulb with a similar lumen rating but with a beam angle approaching 360 degrees will have less light in the same hemisphere. The result is that these LED bulbs may *seem* brighter than a similarly specified incandescent depending on their orientation. That said, I am using these bulbs both upright in lamp stands and hanging in pendants and haven't yet found a situation where they seem poorer than a 60W incandescent, but that may not be true for all applications.
Supercharged to bobo53
4 Oct 161#22
I've got a mixture of the cool white and warm versions all over the house - no issues at all and most have been installed for over a year now and my electricity usage is stupidly low!
They are more like a 75W Equivelant IMO as noticably brighter than a 60W that I tested. Regarding efficiency, yes these are under 100 Lumens per Watt but very few LED lamps out there currently are and these are under £2 each!
huangxq2 to bobo53
4 Oct 16#29
I agree with you.
If it is A+, 9w should get more than 60w.
It is likely that A+ is a overstatement.
_hukdealer_ to bobo53
4 Oct 16#35
I bought 10 warm white ones last year. They are very bright. 60w normal bulb used to be very weak and I bought only one in my life and never used it again because of low brightness.
These are like 90-100w normal ones (just little weaker or equal to normal 100w bulb used to be before eu banned it). One is strong enough for large living room.
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Opening post
This is for the 9W warm white on a BC fitting. Also available in cool white and/or on ES fittings at the same offer price. Specified as 806 lumen with a colour temperature of 2700K, however they seem to have a slightly better quality light than a tungsten bulb and I'd wager most people would say they're noticeably brighter than 60W but still a pleasant warm white tungsten-like colour. Specified for 15,000 hours and with a 3 year warranty.
Top comments
The bulb is A rated if it uses <24% of the power,
A+ rated if it uses <17% of the power,
and A++ rated if it uses <11% of the power.
There is currently no category above A++.
These Screwfix bulbs produce a luminous flux which is at least as good as a 60W bulb, and consume 9W. 9 is 15% of 60, so the bulbs are rated A+. Simples. (And they are hardly borderline in being rated that).
If, as many of us subjectively speculate, these bulbs are actually equivalent to 75W, then their relative consumption is actually 12%, which would make them borderline A++.
Note also that these bulbs have a diffuser - i.e. the coating on the globe which spreads the light out so that the bulb looks more like a regular bulb (and so you don't get the highly directional point sources that a LED produces). That hits the overall efficiency slightly.
http://www.screwfix.com/p/lap-gls-led-lamps-white-bc-9w-5-pack/8621j
EDIT: The one thing I'd add to the above is that there is an angular component to the measurement of luminous flux. These LED bulbs have a stated beam angle of 200 degrees, so the light they produce is far more concentrated in the hemisphere above the plane of the bulb than below (with the bulb upright like in the picture). An incandescent bulb with a similar lumen rating but with a beam angle approaching 360 degrees will have less light in the same hemisphere. The result is that these LED bulbs may *seem* brighter than a similarly specified incandescent depending on their orientation. That said, I am using these bulbs both upright in lamp stands and hanging in pendants and haven't yet found a situation where they seem poorer than a 60W incandescent, but that may not be true for all applications.
All comments (86)
http://www.screwfix.com/p/lap-gls-led-lamps-white-bc-9w-5-pack/8621j
Good explanation of the problem with dimming LED lights from bigclive
https://youtu.be/fWh2obSY0dQ
EDIT: The one thing I'd add to the above is that there is an angular component to the measurement of luminous flux. These LED bulbs have a stated beam angle of 200 degrees, so the light they produce is far more concentrated in the hemisphere above the plane of the bulb than below (with the bulb upright like in the picture). An incandescent bulb with a similar lumen rating but with a beam angle approaching 360 degrees will have less light in the same hemisphere. The result is that these LED bulbs may *seem* brighter than a similarly specified incandescent depending on their orientation. That said, I am using these bulbs both upright in lamp stands and hanging in pendants and haven't yet found a situation where they seem poorer than a 60W incandescent, but that may not be true for all applications.
They are more like a 75W Equivelant IMO as noticably brighter than a 60W that I tested. Regarding efficiency, yes these are under 100 Lumens per Watt but very few LED lamps out there currently are and these are under £2 each!
If it is A+, 9w should get more than 60w.
It is likely that A+ is a overstatement.
These are like 90-100w normal ones (just little weaker or equal to normal 100w bulb used to be before eu banned it). One is strong enough for large living room.