Illuminance (at 10 cm distance): 6.000 lux (on 10cm diameter)
Power supply: Knob for continuous brightness adjustment. Different illumination settings: omnidirectional (ring completely on), obilque (only a quarter or half ring switched on).
External power supply provided, with built-in illumination controls. Input: 100/240 Vac 50/60 Hz; output: 12 Vdc 150 mA