LED G9 bulbs.

casper_gutman

ic said:

I've never had G9 lamps before because I avoided anything that only accepted halogen due to the running cost so can't compare.  However a quick search suggests a 60W halogen could achieve as much as 900 lumens, where as the bulb I linked does 570 lumens (but claims 60w equivalent).  I got these to replace some cheaper Wessex bulbs I got from Toolstation, which I think achieved only 450 lumens and they were far too dim.

The apparent discrepancy between the light output of a 60W halogen bulb and the "equivalent" 60W value quoted by the LED bulb manufacturer is mostly explainable. Halogen bulbs are themselves somewhat more efficient than a traditional filament lamp of the same power rating. A 60W filament lamp is (I think, off the top of my head) similar in light output to about a 40W halogen bulb. This would have a light output of about 600 lumens, so much closer to the 570 from the LED you saw.

lr1277

Some words of caution.

I have G9 light fittings in my ceiling lights The bulbs would blow after about 1000 hours.

I did buy 1 or 2 packs of G9 LED bulbs. But found they were much bigger physically than the halogen bulbs.

So the LEB bulbs I bought would not fit into the light because they were too big for the glass surround to the socket.

Also the LED bulbs G9 'connector' was meant to be the same specification as the G9 connector for the halogen bulb, would not fit into the socket of the light (after I had removed the glass surround).

Admittedly not every halogen G9 bulb I bought would fit into the socket. It could be because they were cheap or the socket was poorly designed.

You might end up buying a few different bulbs and trying them out.

From my point of view if an LED bulb can last over 20k hours, I am resigned to replacing all my G9 lights with an LED light.

Additionally a halogen spot light outside my mum's front door had to be replaced with an LED spotlight because

1) The LED version of that particular bulb was much bigger in diameter than the halogen version. It was too big for the original light fitting.

2) No manufacturer makes those halogen bulbs anymore (well at least not that I could find). My mum's cooker hood also uses this type of bulb. So when it needs replacing is a problem for anotherr day.

ThisIsWeird

Rodders53 said:

Back in the day TV camera line up was done at fader 7 and for 2700 Kelvin from the mostly Tungsten Halogen studio lamps that were 3200K at full voltage.  The colour temperature difference from lower fader level say 2200K to 3200K was not significant or noticeable as the incandescent filaments were broad spectrum of the wavelengths of light.
LEDs and Fluorescent and Discharge lamps are not broad spectrum in the same way and can have 'spikes' of particular colours.  The missing wavelengths and/or relative levels of the wavelengths in the light source can make objects seem 'oddly coloured'.
Thus, the Colour Rendering Index CRI of LEDs is far more important.  Incandescent lamps have a CRI of 100.  The LEDs I've linked to claim 85 which is not at all bad.
Cooking / foods seem to show up dodgy CRI leds to my eyes at least.
I suspect that CRI claims and the proof of the pudding will require on site testing by the M-i-L's eyeballs. Good Luck!

Thanks again, Rodders.

Following your previous Q re what actual spec I am after, I've checked the wee box the Eveready halogen came in, and it helpfully says '450 lumens' and 'Warm White 2800K'.

So that, in theory, answers my Q as to whether the silly-cheap Energizers are worth a punt - it would seem, yes.

I shall report back.

Nollaig Chridheil, all.

Money_Grabber13579

These are the ones I use and my view would be that if you replace them all at the same time, you’ll never notice the difference (I had the same challenge with my mum refusing to contemplate LEDs previously - they look horrible, they’ll be too dim, they’ll be a different colour etc. But now they’ve been replaced, I don’t hear any of that anymore!)

https://www.ledbulbs.co.uk/products/philips-2-8w-led-g9-g9-capsule-very-warm-white-72642600

Couple of additional points. When I first got them, I seemed to have been supplied from a faulty batch and they all failed (started strobing) within months. Philips replaced them all and there have been no issues since (looking back, that was in 2019). The size of the capsules is significantly larger than the halogen bulbs so as mentioned previously, you’ll need to check they will fit. On brightness, I guess it depends on how well lit the room is currently. We have a light with 5 in the kitchen and 6 in a sunroom. The kitchen is perfectly well lit and if anything, the sun room is far too bright.

ThisIsWeird

Money_Grabber13579 said:

These are the ones I use and my view would be that if you replace them all at the same time, you’ll never notice the difference (I had the same challenge with my mum refusing to contemplate LEDs previously - they look horrible, they’ll be too dim, they’ll be a different colour etc. But now they’ve been replaced, I don’t hear any of that anymore!)

https://www.ledbulbs.co.uk/products/philips-2-8w-led-g9-g9-capsule-very-warm-white-72642600

Couple of additional points. When I first got them, I seemed to have been supplied from a faulty batch and they all failed (started strobing) within months. Philips replaced them all and there have been no issues since (looking back, that was in 2019). The size of the capsules is significantly larger than the halogen bulbs so as mentioned previously, you’ll need to check they will fit. On brightness, I guess it depends on how well lit the room is currently. We have a light with 5 in the kitchen and 6 in a sunroom. The kitchen is perfectly well lit and if anything, the sun room is far too bright.

Thank you - just the sort of info I was looking for. And these Philips babies are reasonably priced, too.
I'd need the larger size - 40W equivalent - but other than that, promising 
I've ordered the Energizers anyway, so we'll see how they pan out.
Yes, if I just swapped them all, I doubt anyone would notice, but I suspect I'll be asked to demonstrate a comparison first... 

ThisIsWeird

Forgot to update. The Energizers are perfect - they match, as near as makes zero difference, the G9 40W halogens in both light output and colour. They look well made too.

Phew.

https://www.ebay.co.uk/itm/335660625111