1) Item/model: HP/R 201, HP/R 301, HP/R 401, HP/R 401+ 2) Aperture: 285mmx285mm 3) Folding: foldaway arm and head 4) Objective lens: a) HP/4 201: 1-element f=290 b) HP/R 301, HP/R 401: 3-element f=310 c) HP/R 401+: 1-element f=290 5) Lamp/life: 24V 250W/50h, EVD 36V 400W/50h 6) Dual sockets/Dual lamps 7) Illumination (central lumen): a) HP/R 201: 3000+ b) HP/R 301: 2800+ c) HP/R 401: 4200+ d) HP/R 401+: 4200+ 8) Tilting angle: 0-60 degrees 9) Head rotation: 360 degrees 10) Lamp changer: yes 11) Condenser lens: a) HP/R 201: No b) HP/R 301, HP/R 401: Yes c) HP/R401+: No 12) Safety cut switch: yes 13) Overheat thermostat: yes 14) Brightness switch: yes 15) Cooling system: forced air-cooled (Drum cooling fan) 16) Power supply: AC 110V,220/230V,230/240V,50/60Hz available 17) Power cord: 3m standard detachable power cable, special length upon request 18) Net weight: a) HP/R 201: 11.2kg b) HP/R 301: 10.5kg c) HP/R 401: 11.2kg d) HP/R 401+: 11kg 19) Dimensions: 300x310x230mm 20) Packing size: 440x410x290mm