Nominal power: this luminaire contains integrated LED lamps with a power of 3W which can not be replaced Lifetime * of LEDs: 20,000 hours Illumination of 840 Lux at 28 cm Color temperature: to be confirmed Weighted energy consumption: 2,5 kWh / 1000 h Luminous efficiency ** of LEDs: 100 lm / W Energy efficiency: class A / A + / A ++ (spectrum A ++ to E) CRI: >80 height: 30 cm Materials: base and head in ABS plastic / metal arm with rubber surface Average consumption: 1000 h / year** Light emission of the lighting source Nomad lamp: wireless and thanks to its low weight of 190g, UKKY is easily transported from one workspace to another (office, meeting room, co-working spaces).Compact: once folded, this lamp can now accompany you on your travels (transport).Practical: can be plugged directly into USB port with a 1m cord supplied or works with 3 AA 1,5V batteries not supplied.27 cm arm: fully flexible swivel in all directions to adjust lighting in the right place on your worktop.Light int