Energy saving GU10's

Andy.T

Thanks for that, I've got some LEDs in my daughters bedroom at the moment that I got from Ebay and I find the light a little cold and harsh. I'd go with LED if ther are some that are a bit warmer. How are yours and what make/model?

leon

normally they come in warm white which is like a normal gu10 bulb and their are cool white which is more of  a blueish spectrum ..maybe u have the cool white ,,
i mix and match them works fine ,,
i have all sorts going from the led with 20 small leds to the cree ones which is like one fat led in the middle ..
i use a firm called kymanledtex   .. they are expencive but woth every penny

Kymanledtex.com - suppliers of eco lights and products

pete the feet

GU10 Cool White Light Bulb 60 LED 250 Lumen x 1 Bulb

I wonder what you think of these?

John

I've too have been on the lookout for GU10 LED replacements but have been reluctant to take the plunge in case its an expensive mistake. We currently have 10 50W Halogens in the kitchen, 7 35W in the bathroom and 10 50W in the attic.
I believe Megaman have brought out a 14W 70W equivalent which may be more of a replacement than the 11W 50W equivalent. Has anyone tried them?

pete the feet

Expensive mistake is having 20 out of 27 bulbs @ 50w Why not change them to 35w ones. Think of the cash saving

pedro26

Tried it but  I would probably do myself an injury slicing the veg under reduced lighting.

The bathroom was originally 50W now reduced to 35W.

SteveAWOL

I thought one of the replies given above might be a bit misleading, NB although its an old thread, it was flagged up when I was looking for info on this topic.

From Wikipedia
If a light source emits one candela of luminous intensity uniformly across a solid angle of one steradian, the total luminous flux emitted into that angle is one lumen ( 1 cd·1 sr=1 lm ).

Based on Wikipedia
One steradian is the solid angle for that cone which covers an area of r^2 on the surface of a sphere of radius r.

So to convert you need to know the area over which the candelas are emitted, and if the illumination is non-unform an average figure for the illumination over the area.

I have heard that some manufacturers quote spot/peak values.

Member 414737

Hi, one of the GU10 bulbs in my kitchen has blown and just wondering if there's been any advancements in the CFL/LED technology since this thread was last active?

As I tried out one of the Megaman dimmerable 11W bulbs which provided a good crisp light with a wide angle but it only lasted a couple of months

So am tempted to go back to the much cheaper halogen 35W bulbs, as the heat they generate should come in handy during the winter months!

SteveAWOL

Heard that there are many problems with quality on Megaman. If you use Philips MasterLED 5.5W GU10 it's retrofit, 50W worth of output and guaranteed for 3 years.

Member 414737

Yeah I've read the feedback on Megaman Dimmerable bulbs on Amazon and won't be wasting my money on another until they solve their reliability issues.

I see that the 7W Master LED lamps are meant to be equivalent to a 50W halogen bulb according to http://www.lighting.philips.co.uk/pwc_li/gb_en/subsites/oem/download/masterled/master_led_brochure.pdf

Although I can't seem to find any feedback on their reliability and don't want to spend £30  on a bulb that fails within months...