Instruction: Output yes if the supporting document can answer the given question. Otherwise, output no.

Input:
Question: Is this bulb dimmable?
Document: The bulbs provide enough light for a bath, but it takes several minutes for the bulbs to reach full luminance. The outside coating on the coil part of the bulb is cheap and easily flakes off. Handle with care.
I like my light. Either way, they brighten up quickly and provide you with the best light you can buy in a GU10-base!Second issue: these are longer than your standard halogen bulb, so be certain they will fit in your lamp.
Bought one of these to replace some track lighting hologens. Only purchased one because I wanted to make sure it matched my tastes -- I had purchased an LED light of similar specifications and was very disappointed in the warmth of the light. This bulb was actually nicer than the hologens that I had in place and I look forward to purchasing more soon.I would give this product 5 stars if it were just a bit less expensive. I think $9-10 would be more appropriate
This item is just what I've been looking for. It's an energy saver and the output is cool to the touch at a lower wattage than halogen bulbs.
The size is considerbly longer than standard GU10 bulbs. If you can fit them to your needs, the energy savings are well worth the purchase. After 6 months of use, there has been no fading, and the heat output (like most fluorescent bulbs) is very minimal.We have tried a few of the low-energy LED products for the GU10 fittings. Unfortunately, we've yet to find an LED fitting that will compare to lighting capability of a halogen light.
That was a GREAT decision! These things are BRIGHT, even more so than the halogens. They have a warm glow, but softer than halos. All my lights are soft white CFLs, 150 and 100 watt equivalents, and these compliment them brilliantly. They don't heat up the collection and provide an even brighter, more filling light than the halogens ever did.There are some caveats, however. Cold startup is relatively slow, but still quick for a CFL, definitely for a specialty one.
That is quite a good run for as often as I switch these on and off. Twice a day and then again once or twice just before bed... I usually forget something in the office four or five times a week.Not sure if I've hit a wall and will lose the others soon, but I'll be sure to update this review as things go. Guess I'll order some spares, just in case.
Not really a big deal for most people, but it may annoy the perfectionist.So, no doubt about it, these are great! It remains to be seen how long they will last. The Insteon network I set up has these turning on and off twice, daily. I'll be sure to update or repost should there be lifespan problems.Buy these!EDIT 2011.12.01Of my six bulbs, I just lost first two!
Incandescent spot bulbs last only half as long as they advertise.
I installed some of the $10 GU10 cans from Lowes in my new office. There are six bunched together to provide plenty of light to a desk or in my case, a figure collection. The Halogens were bright and the instant-on is nice, but they were hot! And these are vinyl models that they are shining on. So I decided to try LEDs. I've had great luck with Ikea's Dioder lights, but those are pucks and strips only, no GU10 base bulbs.
Answer: no