ETC 426 Source Four 26-Degree Ellipsoidal

ETC's 426 Source Four 26-Degree Ellipsoidal combines the energy-saving power of the patented HPL lamp with a dichroic reflector and optical-quality lenses. That means your gels, patterns and shutters last longer and your performance space stays cooler.

No other light offers such optical brilliance. Source Four's revolutionary technology gives you a clean white beam for unequaled imaging, crisp pattern projection, and a bright, even field. The EDLT lens tube option for 19º, 26º, 36º and 50º field angles makes the Source Four even better for ultra-crisp, high-contrast gobo projections.

ETC 426 Source Four Features

• Available in black and white finishes (white not pictured)
• 26-degree ellipsoidal
• Rated up to 750W
• Super-efficient HPL lamp
• Faceted dichroic reflector removes 90% of IR heat from beam
• Interchangeable lens tubes
• Rotating barrel ± 25º
• Three-plane stainless-steel shutter blade assembly
• Tool-free lamp adjustment
• Insulated rear handle
• Rugged die-cast aluminum construction
• Supports Dimmer Doubling™ (North America only)

• 426 Source Four 26-Degree Ellipsoidal1

• Physical
  • Rugged die cast aluminum construction
  • Rotating shutter assembly ±25˚
  • 20 gauge stainless steel shutters in a tri-plane assembly
  • Interchangeable lens tubes with smooth-running Teflon® guides provide nine user-fit field angle options
  • Thermally insulated rear handle
  • High impact, thermally insulated knobs and shutter handles
  • Two accessory slots and a top mounted, gel frame retainer
  • Steel yoke with two mounting positions
  • Positive locking single-clutch fixture body
  • Slot for glass or stainless steel patterns
  • Wide accessory slot with sliding cover for motorized pattern devices or optional iris
  • Uses 7.5” color frame
  • UL and cUL Listed
• Electrical
  • 115-240V, 50/60Hz
  • High temperature 3-conductor 36” leads in a glass fiber outer sleeve
  • Supports ETC Dimmer Doubling™ technology
• Lamp
  • 750W Maximum
  • HPL – compact tungsten filament contained in a krypton-filled quartz envelope (see table for suitable lamp types)
  • Patented filament geometry makes for extremely efficient light collection and transmission
  • Integral die cast aluminum heat sink lamp base
• Optical
  • Re-optimized optical system for improved photometric
  • performance and field uniformity
  • Projector-quality, high contrast dual aspheric lenses
  • Superior quality optical glass with advanced AR coatings
  • Provides crisp edge definition and high gobo contrast
  • Faceted borosilicate reflector with dichroic cold mirror coating removes greater than 90% infrared radiation (heat) and reflects greater than 95% of visible light
  • Reflector secured with anti-vibration shock mounts
  • Lenses secured with anti-vibration shock mounts
  • Tool free, positive locking X, Y and Z lamp centering adjustments, unaffected by relamping
  • Beam edge continually adjustable hard-to-soft
  • Interchangeable lens barrels permit selection of 5˚, 10˚, 14˚, 19˚, 26˚, 36˚, 50˚, 70˚, and 90˚ field angles as well as 19˚, 26˚, 36˚, and 50˚ EDLT lenses
• Throw Distance (d)
  • 15' (4.6m)
  • 30' (9.1m)
  • 45' (13.7m)
  • 60' (18.1m)
• Field Diameter
  • 6.7' (2m)
  • 13.4' (4.1m)
  • 20.1' (6.1m)
  • 26.8' (8.2m)
• Illuminance (fc)
  • 783
  • 196
  • 87
  • 49
• Illuminance (lux)
  • 8432
  • 2108
  • 937
  • 527
• Dimensions (LxWxH)22.8x13.3x21.3" (579x338x541mm)
• Weight14 lbs (6.4kg)
• Shipping Weight20 lbs (9.1kg)
• Degrees26
• Candela176255
• Field Lumens13690
• Beam Lumens9040
• Efficiency0.625
• Lumens per Watt18.3