LED Bulbs. Help!

ukjoel

I bought 5 Philips GU10 Leds from Sainsburys about 18 months ago as they said on the back they would last 10 years or 18000 hours.

Two have now gone so I went to Sainsburys anticipating a refund as they were only 15% into their anticipated life.

They said no and referred me to Philips.
Philips also said no.

I went back to Sainsburys and eventually got a £20 goodwill voucher which was the same amount I spent on the 5 bulbs.

The other 3 Philips are going strong but these bulbs are not cheap and I think its wrong for the to advertise and market a life expectancy if they wont support or replace those that fail to come anywhere near achieving this.

Well done Sainsburys - after some prodding.

pgregg

I've tried several different LED types, but my last discovery was MiniSun 5W LEDs (GU10) - by far the brightest bulb I've had in my kitchen. I highly recommend them. http://amzn.to/1yiTZ5C

J_B

Thanks .... but ..... we need E14 golf ball ones, not GU10

jamesperrett

As far as the original query is concerned, I've had a good experience with the 5W GU10 COB LED's from Toolstation. At first glance they look just like halogen bulbs but they have a thicker metal surround for a heatsink. I've also had other types of LED's from Toolstation and all have been good.

I bought some of the cheaper 3 LED bulbs from Ebay and over 50% have now died. I've also had one Aldi candle bulb fail after about a year but the others I bought at the same time are still fine.

almillar

J B - how about these at 400lm:

http://www.ikea.com/gb/en/catalog/products/80266755/

or these at 200lm if 400lm each is too bright:

http://www.ikea.com/gb/en/catalog/products/90255290/

mickamike404

Poundland are selling LED at the moment 3w equeals 20w output small screw type and standard bayonet type, (candle and golf ball)
I got some for for bedside lamps single toilet and other small lamps all working fine so far,£1 each,

kwikbreaks

Spam reported.

fenlander_uk

elstimpo wrote: »

Also, 'cheap' LED's are usually a false economy. A proper LED Lamp will have good quality LED Chip, power supply, capacitor and incredibly important is thermal management system to remove heat from the critical components. If anything thinks this can be done on the cheap then i can tell you it absolutely cannot. If you buy simply on a cheap price the likelihood you will have to replace these is very high.

There are lots of and lots of traps in this industry, especially from those who 'pile them high and sell them cheap' so please do a lot of research before spending your money.

I bought 16 5w GU10s last year in a clearance bin at Homebase for just £1 each (...what's to lose?). They've performed flawlessly and no failures to date.

System

Hi

If you use DuckDuckGo as your search engine, type in "international lamps", if you don't, type in "international lamps" into another search engine.

The results include lamp and led suppliers.

The world standard for voltage is 230, 'cept where they hold things like the world series (US of A). There is a tolerance of 10%.

Some manufacturers are aware that the UK is 240v and makes their product specifically to suit, and their life expectancy is the greater for it IMHO.

Others know their product is within the legal tolerance and don't have to modify (potentially saving money), and their products can run a little hotter, and for a shorter time on UK voltages. So you get to buy them all over again.

OH yes, nearly forgot...
https://www.internationalleds.co.uk/b.php?cat=led-golf-ball-lamps&catid=29

Rodders53

patman99 wrote: »

One thing I will say, and that is, as a keen photographer SMD bulbs with a 2700Kelvin output are ideal for use as hot-lights.
They work in the same light spectrum as sunlight through a standard glazed window and give the best white balance.

CRI will be more important than the colour temperature - and sunlight through a window is a LOT "cooler" than 2700K... That's why the BBC Pebble Mill's Foyer studio used 'daylight' HMI luminaires (nominal 6000K) and lots of Neutral Density filters on the window to help balance the brightness levels.

2700K was the 'white balance' level for tungsten halogen lamps in TV studios at dimmer fader 7 to allow for a minimal perceptible change of colour temperature between around 4 and 10 on the faders. (@ fader 10 = 240V the lamps are 3200K).

almillar wrote: »

You've lived your life under 2700K - the sun, and most of the 'nice' lights - traditional Edison bulbs, halogen etc, are the same colour as that,.

Sorry, but you are wrong... Sunlight is circa 5500-6000K, or 6500K if overcast. Even moonlight is 4100K https://en.wikipedia.org/wiki/Color_temperature

Tungsten melts around 3700K and the colour temperature chosen by makers is mainly based on life of the lamp in operation. True that it's the colour temp range we've become used to indoors though.