We have been testing a couple of the (warm) "V3 Ultimate GU10 LED Spot Lights" in a specially-installed 'test' lighting fixture in our kitchen (2010--). We're getting less lumens per Watt in this GU10 style than with the EQ60, but that's in part because the GU10 fitting is hostile to non-incandescent technology in general being designed to retain heat which is good for halogens but bad for LEDs/CFL. CFLs in this format seem to be limited to ~50lm/W also.
(In 2012 I would expect new GU10 lamps to beat 60lm/W, but these were relatively early models and are still much much more efficient than halogens.)
I asked a colleague and their spouse to try Light Planet's 7W warm-white spot (GU10/240V, 355lm, 2850K--3000K, CRI 70, 120° beam angle), their spouse being a medic who likes everything "like an operating theatre" and thus wants a decent volume and 'quality' of light, and they were sufficiently impressed to replace all the halogens in that room with these devices! Indeed, they report the halogen bulbs as looking weak and watery by comparison. (Note that a typical 50W halogen apparently emits up to 900 lumen, 35W/~600lm, though I see 12lm/W typical quoted, and light temperature of ~3000K is common.)
The V3 light quality is pleasant, and unlike the CFL GU10 that the comparison is against, is almost instant-on (within a second). The 'warm' tone suits our yellow walls.
The beam angle is 120° and thus barely a 'spot' in fact, which also suits our purposes fine.
When alongside an Omicron 11W GU10 CFL (2700K), the LED is faster to come on (almost instant, with no "warm-up" phase) and of very similar colour after a few minutes when the CFL has stabilised. Both are fairly pleasing to the eye in terms of design and appearance, though the CFL has a longer body that protrudes from the fitting, so the LED wins on that element.
We'll have continued ro like the light tone in the darker months of winter with less bright natural (cooler) light around. I can also report that it is pleasant to use at night, warm and full, unlike the watery 5W 'cool' LED lamps we tried in a similar position.
We like the V3, and would only hope for a greater efficiency (lm/W) and greater power output (ie more light) in future revisions.
Update 2010-01-15: Swapped in the 7W/355lm "warm white" (2850K--3000K), CRI 70, 120° beam angle Aeon (Taiwan) ALTLED Aurora V3 M02GW007KC-90, -20°C--40°C ambient, 100V-240V AC, 50/60Hz GU10 spot/downlighter for my daughter's current bedside 3W 6000K LED, and it is as expected much brighter and warmer. It also looks a little more delicate (more fins at the front) and interestingly takes something like a second to switch on, and quite a few seconds to completely fade to off. (A quick test of the ES bulb in my desk reading lamp replacing a new 12W "softone" CFL seems satisfactory too, this evening.)
