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, and 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, and 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, it includes a built-in battery for fixture setup, an auto sensing power supply, and a low weight of just 55 lbs. in all. The GLP GT-1 is an incredibly versatile fixture for a wide range of applications.



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Light Source

  • Lamp type: Osram Sirius HRI 440 Watt
  • Lifetime: 1,500 hours
  • Color temperature: 7000 Kelvin


  • 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

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°

Power Supply

  • Mains voltage: 100-240 VAC / 50-60 Hz
  • 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 tour pack complete with omega brackets and stacking flight case

Housing Colors

  • Standard colors: black
  • For other colors please contact sales department


  • (L x W x H): head vertical
    • 18.5 in. x 9 in. x 25.7 in. (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  GT-1_dimensions

ZIPIcon  GLP impression GT-1 Vectorworks

ZIPIcon  GT-1 CAD – 3D

ZIPIcon   impression GT-1 3D DWG


PDFIcon  impression GT-1 Product Card

PDFIcon  impression GT-1 Spec Sheet