Yesterday I was at the Northern Light Fair in Stockholm to check out the latest lamps.
One of Osram’s displays. The lamps left and middle are CFLs, and the 5 to the right are decorative incandescent (which looked brighter in real life).
While the LEDs certainly have improved since my last visit to the Light Fair two years ago, there are still huge quality differences between different types of LEDs.
First I checked out the holiday lights; strings, icicles, candelabras etc.
As usual, coloured ones were great, the cool-white horrid, and the warm-white ones of varying quality. Some were pink-white, others ugly yellow, but a few were actually very incandescent-looking, so clearly they are improving. However, only in light colour, not in light output.
In this picture the difference between the somewhat pale LEDs (to the left) and the glowing traditional incandescent strings (to the right) is clearly visible, even though it is clearer in real life.
Strings with many little light points still work as decorative lights, but in the candelabras there wasn’t enough light to radiate outwards, just a dull and gloomy glow inside the little bulbs, clearly not nearly as bright as the incandescent candelabra next to it and not at all giving that warm Christmas feel that you want from an electric candelabra.
In this picture the real incandescent candelabra is the glowing one in the lower left corner. The duller ones that don’t radiate are LED.
Next, I looked at non-decorative LEDs. Again I found great quality variations in the various attempts at producing bright warm-white light. I was not impressed with any of the LED retrofit bulbs from Osram, Megaman and Leuci. Bleak light, colour not quite right, still insisting on the less-than-great idea of putting LEDs in a retrofit bulb etc.
The best LEDs came integrated in luminaires from Norwegian luminaire company Lampkonsulenten. Their high power LEDs were of a completely different quality class and came in white and warm-white light which both looked decently incandescent-like and decently bright and radiating (as far as I was able to tell in this well-lit commercial setting; I’d have to try one at home to see if this impression holds). Compared to these quality LEDs, all others on the fair looked like a joke. But it made me a bit more optimistic regarding the options available for professional lighting designers even if their output is still limited and the quality not quite as high as real incandescent light. But I think they would do well compared with metal halide for example, at least quality-wise.
Both Osram and Leuci had excellent halogen energy savers. The Osram representative said it is technically possible to make halogen lamps much more effective even without the integrated low-voltage transformer (which Philips use for their B-class halogen lamps) but it requires more R&D so they want to be sure there is enough market for it before investing and didn’t seem in a hurry to do so before EU bans C-class lamps in 2016.
So do let them know if you’re interested in even more effective halogen lamps now! If you like real incandescent light, this is the replacement to go for.
On the luminaire side, I found a great variety and much creativity. General trend seems to be softer shapes compared to the cold, hard designs that totally dominated the market just a couple of years ago, fewer black lamp shades (finally!) and much playfulness, e.g. integrating decorative LEDs in the design, using new materials in creative combinations, and making crystal chandeliers that truly look like something from this century.
Just a brief example.