Light output of LEDs compared to other lamps?

[singlecoil]

Anyone have any personal experience they could share of switching from fluorescents, halogens etc to LEDs? For instance, 3.5 LEDs, how would they compare to for instance a 14W fluorescent tube? I'm looking for suitable worktop lighting to install under wall units, BTW, so a good spread of light would be ideal.

[vdp1]

I would say the figures they quote bare no resemblance to what they actually achieve.
I have seen ones that quote they are better than halogens and are far far worse. Yet my favorite one at the moment quotes a lumen output of 180 (a halogen is about 500) but is easily as good as a 50W GU10 halogen lamp.

The only way to see what they are like is to try one.

[Deva Link]

vdp1 said:

Yet my favorite one at the moment quotes a lumen output of 180 (a halogen is about 500) but is easily as good as a 50W GU10 halogen lamp.

Which lamp is that?

[vdp1]

Deva Link said:

Which lamp is that?

http://www.eterna-lighting.co.uk/productinfo.asp?product=LED3SMD

4.99+vat from denmans.

[cptsideways]

The SMD type are far better than those with lenses I have found

[hairyben]

Theres a wide variety of light output and quality, and a lot of bold claims made by retailers. It's advisable to buy what you can see lit up in person, not by going on retailers spiel on a site somewhere.


Personally I fitted some of TLC's under cupboard LED light strips for a client recently and was quite satisfied with them, as was the customer. The warm white is a nice colour, quite close to 12v halogen.

[Deva Link]

vdp1 said:

Deva Link said:

Which lamp is that?

http://www.eterna-lighting.co.uk/productinfo.asp?product=LED3SMD

4.99+vat from denmans.

Thanks for that, there one nearish to me, although I think you're getting a very good price!

Baffling why it looks the same if the lumen value is so different though. Are they very narrow focussed? I'm using halogen floods - I think they're 40°.

[matt666]

I bought one of these to try, to replace one bulb in a set of four in a kitchen light fixture. It is as bright as a 50W halogen and the light it gives off is very similar, just a little bit greener/bluer.

http://www.amazon.co.uk/gp/product/B007Z1ZOZI/ref=...

[Deva Link]

matt666 said:

I bought one of these to try, to replace one bulb in a set of four in a kitchen light fixture. It is as bright as a 50W halogen and the light it gives off is very similar, just a little bit greener/bluer.

http://www.amazon.co.uk/gp/product/B007Z1ZOZI/ref=...

As always with Amazon, the review comments are astonishingly variable!

I notice the most recent reviewer suggests the poor lifetime some people are having with the lamps is due to mixing them (as you have). I've seen that stated before, but I can't imagine why it can be true.


I don't have good experience of buying lamps off Amazon though - I got a pack of 60W incandescent golf ball lamps off an Amazon supplier just before Xmas and every one popped immediately it was turned on.

Edited by Deva Link on Thursday 17th January 14:39

[mk1fan]

singlecoil said:

I'm looking for suitable worktop lighting to install under wall units, BTW, so a good spread of light would be ideal.

For under cabinet lighting I like to use the SMD strip lights that are encased in resin. Loads on ebay for about £15 for a 5M roll. Just need a suitably powered driver (can be had for About £10). If one line of lights isn't enough then just run another strip.

http://www.ebay.co.uk/itm/5M-Led-Strip-12V-Waterpr... Even cheaper.

3528 SMDs are smaller size so have less out put. 5050 SMDs are larger and have more out put. Both are usually 60 SMDs per metre.

In kitchens or bathrooms I prefer cool white.