Hands-Free Visor Light System

The AlphaTec® Hands-Free Visor Light System (formerly known as TRELLCHEM®) is a short throw illumination system for hands-free operation, designed to offer improved visibility and a safer working environment for the hazmat responder.

  • LED (Light Emitting Diodes) - long life time, durable quality & energy efficient
  • Panoramic lighting - spreads the light through a wide area with no risk of blinding reflections
  • Lightweight - adds minimally to the total weight carried
  • Slim design - minimal interference with movement and other equipment
  • Fits in AlphaTec® gas-tight suits (formerly known as TRELLCHEM®) of encapsulating design (Level A), and can easily be installed in existing type CV or VP1 suits
  • US patent pending


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Hands-Free Visor Light System


The AlphaTec® Hands-Free Visor Light System comes in two different designs to fit inside the visor of the corresponding chemical suit design:

  • type CV
  • type VP1


The system consists of the following parts:

  • LED panel (plastic frame with installed LED lamps)
  • Battery casing (battery not included)
  • Battery pack holder with cable loop and elastics
  • Cable loop (short)
  • Screwdriver (type Phillips)
  • Instructions for use

An optional extension kit (for use for alternative positioning of the battery) is available. This kit contains:

  • Extension cable
  • Cable loops (2 short, 2 long)


  • Fulfills the requirements of the EU Directive 2004/108/EC on electromagnetic compatibility (EMC)
  • The AlphaTec® Hands-Free Visor Light System can be used in AlphaTec® encapsulating gas-tight suits with ATEX approval, without affecting this approval
  • The system does not influence or interfere with any certification in regards of the AlphaTec® suit
Description: A LED panel (LED + holder) mounted along the top inside of the visor using double adhesive tape. The LED is connected to a battery via a cable. The battery is placed in a battery casing which is positioned either next to the upper corner of the visor or just below the visor.
Light source: LED (Light Emitting Diodes), 120 LEDs/meter
Illumination: 10 lux at 1 m distance, both horizontally and vertically
Luminous flux: 47 +/- 4 lumen
Color temperature: 6000K (cold white)
Battery casing: Made from aluminum, size 75 x 45 x 25 mm (3.0 x 1.8 x 1.0 in).  Requires screwdriver type PH1 for battery replacement.
Power source: 9V battery (not included)
Duration: Standard alkaline battery: 1 h
Duracell Ultra Power: 2 h
Varta Lithium: 6 h at +20°C (+68°F) 
Weight: LED holder + Battery casing + Battery: approximately 160 g (5.64 oz)
Temperature range: Maximum +60°C (+140°F)
Minimum -20°C (-4°F)
Water resistant: Yes


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