Lamp height: 41' to 69' (104.1cm to 175.3cm) Boom length: 41' (104.1cm) Weight: 9.45lbs(4.29kg) AC Input: 100-240V 0.16A 50-60Hz Consumption: 10W max Duty Cycle: Continuous LED life: 10,000 Hrs minimum Lumen maintenance>70% @30,000Hrs Light distribution: 10 different aperture sizes Nominal Working Distance: 16''(40.6cm) w/large aperture, or 36' (91.4cm) w/small aperture Light source: LED emitter 1. Portable LED operatory light with tripod base to supply convenience and stability. 2. It can be folded neatly into the carrying bag. 3. Flexible gooseneck to meet different working distance. 4. Light weight construction and portable. 5. Bright LED light. 6. Long service life.