LED light bulbs

wikthor

Got a JANSJÖ LED lamp from Ikea recently. Costs 10 pounds and clips over the back of my armchair to give great reading / web surfing light. Best of all, doesn't heat up at all.
In the living room / dining room, two of the standing lamps now have the LED bulbs installed. Whether this will change what we pay for electricity remains to be seen - but the light is actually nice and warm, not the cold blue deathly shade I feared

elstimpo

JohnB47 wrote: »

Just a bit more info. The 7w dimmable gu10 led spots I bought are 2580k and these are almost identical colour balance to the halogens they replaced. Bear in mind that not all halogen spots are the same colour balance anyway. I can't be the only one who's replaced an original halogen spot with one bought at the local hardware store and found the colour of the replacement slightly warmer or cooler than the original.

For Warm White you need 2500k to 2700k - which colour temp in that range is perfect for any particular person is 100% down to personal preference.

almillar

People think they want 'whiter than white' (I blame Persil) but actually most of the light around you (as in sunlight, and any type of bulb except fluorescent tubes), is pretty yellow. That's usually better in the home. Other colours are often too blue looking, and you'll look awful when you look in the mirror in the morning! Unless you've experienced different colour temperatures, and have a preference for others, I'd advise to go for 2700-3000K (warm/natural white).
Positive Balance - Yes 380lm will replace 30-40w halogen bulbs. Are all your current bulbs 30-40W halogen with GU10 fittings?
You're lucky that you're not going for the most powerful LEDs, as they're more expensive. I've never heard of that brand. Some of the cheapos can exaggerate what they're equivalent to, and may not contain the best materials, so it might be worth paying a bit more. But you can maybe get older stock for cheap, it might have been replaced with something brighter, and no-one except you will want the old ones!

PositiveBalance

almillar wrote: »

People think they want 'whiter than white' (I blame Persil) but actually most of the light around you (as in sunlight, and any type of bulb except fluorescent tubes), is pretty yellow. That's usually better in the home. Other colours are often too blue looking, and you'll look awful when you look in the mirror in the morning! Unless you've experienced different colour temperatures, and have a preference for others, I'd advise to go for 2700-3000K (warm/natural white).

Phew...I'm OK then!

almillar wrote: »

Positive Balance - Yes 380lm will replace 30-40w halogen bulbs. Are all your current bulbs 30-40W halogen with GU10 fittings?

Yes. There's no point going for more powerful as each fitting has numerous bulbs so it would just be ridiculously bright.

almillar wrote: »

You're lucky that you're not going for the most powerful LEDs, as they're more expensive. I've never heard of that brand. Some of the cheapos can exaggerate what they're equivalent to, and may not contain the best materials, so it might be worth paying a bit more. But you can maybe get older stock for cheap, it might have been replaced with something brighter, and no-one except you will want the old ones!

I've got a couple to try them out. If they are good then, good, and if not, it won't be the end of the world.

Thanks for the advice, almillar. :T

PositiveBalance

I replaced four bulbs thapt had died last night. I replaced one with a SunSolar light and the other three with Ecoljght bulbs. All are warm white. Y he SS seems a fair bit lighter than my regular bulbs and the Ecolight is a much nearer match - you can barely tell a difference. I notice that tgey take a fraction of a second longer to light up You certainly won't hide any dirt with them, though - they show up everything! :eek:

milliebear

We're is the best place to buy g9 about 2 watt in warm white please

GT60

Asda have some offers on

https://groceries.asda.com/asda-webstore/account/password.shtml#/product/910001455467

and some other LEDs 3 for £12

don't know what they are like but would love feed back on them.
Thanks
Not much use to milliebear though sorry

bretts

I got some from homebase for about 3 pounds a bulb. They were 5w each. Absolutely brilliant. I bought some philip master 5w and compared it to them and the brightness is almost the same. I previously bought from ebay and I would suggest not to but from there. I had 9w led spots and the one I have now are 5w but they are double the brightness. Ebay bulbs also ruined one of the fittings and had to call a sparky to replace that. So no no to ebay for that. They do cost less but you get what you pay for and the one's in homebase are 3 pounds which is not really very bad. Have been on for 4 to 5 months no problems but let's see how long they really last for. I do have philips in one room these homebase one's everywhere else. Ebay one's lasted from 2 to 4 months.

almillar

g9 about 2 watt

Why 2 watts? Do you have specific power usage requirements? Shouldn't you be looking for a lumens figure, to work out the light output - if you're replacing a bulb, what wattage is it, and do you consider it bright enough?

elstimpo

GT60 wrote: »

Asda have some offers on

https://groceries.asda.com/asda-webstore/account/password.shtml#/product/910001455467

and some other LEDs 3 for £12

don't know what they are like but would love feed back on them.
Thanks
Not much use to milliebear though sorry

TCP is a giant US company. Those spots claim to be warm white - warm white is not a colour temperature. You need to know exactly what the colour temp is and 2700k is optimum. It also doesn't mention CRI. So there is no way a consumer can make an informed buying decision on these lamps.

To highlight the problem with the term 'warm white' look at these two images. The bottom picture is of a 50w halogen, the top picture is of a 4w LED Spot in warm white sold as a 'perfect halogen replacement' by an online LED retailer.

The difference is staggering.


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