GU-10 base bulb alternatives?

While hot, I'm pretty sure halogen bulbs are more efficient than incandescent. Not sure how they stand up against CFLs or LEDs though.

UPDATE:

okay a google search for "GU-10 LED bulb" yeilded quite a few hits.

Also, here are the google results for GU-10 CFL bulb.

www.EarthLED.com has LED bulbs to replace with - kinda pricey tho.  ...actually and LED currently on the marked that gives off warm strong light is expensive.  CFLs are available also - probably mostly on-line.  You might try:

www.lightbulbsdirect.com  or  home.altenergystore.com

You should at least be able to get good ideas of what to expect selection and price-wise from these sites. 

Good Luck!

the cyber guys link in my first post is a GU10 LED bulb and it's only $20.

I have no idea about the quality or anything but that sounds cheap to me for an LED bulb?

I doubt you will get even 100 lumens from that LED lamp, which would not be even as bright as a 10-watt halogen lamp.

The best GU10-based LED lamps I have found were from LEDBulbBizz on eBay.

If you have to fit in an enclosure that is meant to hold an MR16-sized lamp, the best I've seen so far is 315 lumens (for daylight white, less for warm white), I have several of the E26-based version of this lamp (in daylight white) and it is quite good, and the most efficient LED lamps I have so far at 90 lumens/watt:

http://cgi.ebay.com/2x-GU10-LED-CREE-XR-E-3w-WHITE-or-WARM-315-Lumen-110V_W0QQitemZ190217939526QQihZ009QQcategoryZ20706QQrdZ1QQssPageNameZWD1VQQcmdZViewItemQQ_trksidZp1638Q2em118Q2el1247

If the GU10-based LED lamps do not have to fit inside any kind of enclosure, there are 600-lumen lamps available:

http://cgi.ebay.com/GU10-LED-CREE-10W-Elite-2-75-WHITE-600-lumen-110v-220v_W0QQitemZ350075552508QQihZ022QQcategoryZ20706QQtcZphotoQQcmdZViewItemQQ_trksidZp1742.m153.l1262

I have three of those (in daylight white) and am pleased with their performance.

There are very few GU10-based CFL alternatives and none I'm aware of that will fit inside an enclsoure meant for an MR16-sized lamp.

Edited by bobkart - Wed, 02 Jul 2008 21:41:14 GMT

Edited by bobkart - Wed, 02 Jul 2008 21:42:04 GMT

Replacing the fixtures to allow E26-based lamps is definitely an option worth considering since there are many more options for E26-based lamps compared to GU10-based lamps.  But I would still advise using LED lamps or at least Compact Fluorescent Lamps due to how wasteful of power incandescent lamps are (EDIT: never mind, I see now from reading your first post again that you are already using as many CFLs as you can).

I made up a webpage with pictures of some of the LED lamps I have in use around my house, I'll post it here in case seeing these pictures helps you in your search for energy-efficient lighting alternatives:

http://bobkart.gt3times.com/LED/