LED O by Dorota Kulawik from poland
designer's own words:
Ever wish you could untether your lamp and move it around... Semi-transparent rings contain a barrage of LEDs that can be moved anywhere - indoors and out. The flexibility affords the user to not only use it as a stationary light, but also to wear so you can wander freely about in the dark. Two brightness levels allow you to use it as mood lighting or a source point. The whole system is rechargeable illuminating 10 hours at a time.
Ring shape of "nomadic lamp" is also a result of application an uncommon source of light -flexsible strip with LED diods.