The GT-1 from GLP is a true hybrid fixture, working as a Spot, Beam and Wash fixture. The GT-1 produces the highest levels of performance, using a high powered 440 Watt discharge lamp, its high quality optical system produces an incredible light beam. Additionally, the GT-1 features an enormous 22:1 ratio zoom range from 3.5° to 57°.

The GT-1 incorporates an optical design that doesn’t require different ‘modes’ to activate, meaning any and all feature functionality is available instantly.

When in spot mode, the GT-1  hybrid offers a wide range of effects. Including CMY color mixing, eight rotating gobos, 14 fixed pattern gobos, additional beam reduction gobos. As well as  a variable speed animation wheel, which can be re-positioned within the beam. But it doesn’t stop there, the GT-1 also features three different rotating prisms, and a fixed color wheel with color correction filters, further widening the color pallet.

When in beam mode, the GT-1 produces an astonishing near parallel beam of light at 3.5° through its large 145mm diameter front lens. Which will always remain bright and consistent over long distances. As there are no physical changes, full functionality remains in the GT-1 whilst producing these incredible beam effects.

In Wash mode, the GT-1 hybrid produces a soft edged beam from a variable filter that can be inserted into the beam. Giving the desired level of wash that you wish.

The GLP GT-1 features the classic and unique baseless design. As well as full 16 bit pan and tilt movement, full range dimming and shuttering capability. Additionally an in built battery for fixture setup, an auto sensing power supply and a low weight of just 55 lbs in all. Give a incredibly versatile fixture for a wide range of applications.

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Light Source

  • Lamp type: Osram Sirius HRI 440W
  • Lifetime: 1,500 hours
  • Color temperature: 7,000 Kelvin

Optical System

  • Continuous motorized zoom : 3.5° to 57°
  • Fully variable with no lens changes
  • Focus: motorized, 2m – infinite


  • Resolution: 8 – 16 bit
  • Position feedback: yes
  • Pan 640°
  • Tilt 262°


  • Display        
    • Illuminated graphic LCD
    • Intuitive touch wheel control
    • Self charging buffer battery
    • Automatic orientation of the display
  • Protocol        
    • DMX-512
    • RDM bi-directional communication
  • Cooling   
    • Temperature controlled
    • Overheating protection


  • Dimmer: variable 0-100%, mechanical
  • Shutter: variable 1 – 10 Hz., mechanical
  • Animation effect wheel:
    • Repositionable for vertical, horizontal and angled orientation
    • Continuous rotation control in both direction with variable speed
    • Fully indexable
    • Interchangeable for different designs
  • Variable frost
  • Prisms
    • 3-way radial
    • 8-way radial
    • 6-way linear
    • Continuous rotation control in both direction with variable speed
  • Gobo wheel 1
    • 8 glass gobos, plus open
    • Continuous rotation control in both direction with variable speed
    • Interchangeable for different designs
  • Gobo wheel 2         
    • 14 fixed metal gobos plus 6 different pinholes, and open   
  • Color wheel  
    • 6 color filters
    • 3 color correction filters
    • 1/2 minus green correction
    • Beam flattener
  • Color mixing
    • CMY color mixing

Power Supply

  • Mains voltage: 100-240 VAC / 50-60Hz
  • Power (Watt @ 230V): 720 Watt
  • Fuse: 20mm T 8A


  • DMX data
    • XLR 5-pin in/out
    • XLR 3-pin in/out
  • Power input: Neutrik PowerCon

Operating Conditions

  • Maximum ambient temperature:  115°F  (45°C)

Mounting Options

  • Upright: removable tripod base (supplied) with brackets for ratchet belt
  • Hanging: 2 x M10 socket for half coupler, or other clamp
    • Omega brackets (optional)
  • 2 attachment points for safety wire
  • Any orientation


  • Cardboard box
  • 2 way tourpack complete with omega brackets and stacking flight case

Housing Colors

  • Standard colors: black
  • Optional: special colors on request


  • (L x W x H): head vertical
    • 18.5” x 9” x 25.7”  (47.1 cm x 22.9 cm x 65.4 cm)


Weight: 55 lbs.  (25 kg)


PDFIcon  impression GT-1 Manual


PDFIcon  impression GT1 Channel Layout


PDFIcon    impression GT-1 Dimensions

ZIPIcon  impression GT-1 Vectorworks

ZIPIcon   impression GT-1 3D DWG


PDFIcon   impression GT-1 Photometrics


PDFIcon  impression GT-1 Product Card

PDFIcon  impression GT-1 Spec Sheet