Select a color:
$9.99

COAST warranties its COAST knives, tools, COAST LED Flashlights/Headlamps and ZITHION-X AA/AAA Batteries to be free of defects in materials and workmanship for the life of the original purchaser. This warranty does not cover normal wear and tear, nor damage resulting from misuse or neglect. Warranty does not cover batteries and charging accessories (or damage caused by either). Non-ZXAA or ZXAAA Batteries or damage caused by batteries (i.e. leakage) is not included in the guarantee.

To begin the warranty process with your COAST product, please complete the Online Warranty Request Form.

Stay ready to spot the details. The G20 penlight features COAST’s legendary Inspection Beam, prized for its perfect circle of detail-revealing, anti-glare light. No wire, connection, or leak can hide. With a beam length of 21 meters (68 feet) and run time of 11 hours, this single-mode sidekick features a...

Stay ready to spot the details. The G20 penlight features COAST’s legendary Inspection Beam, prized for its perfect circle of detail-revealing, anti-glare light. No wire, connection, or leak can hide. With a beam length of 21 meters (68 feet) and run time of 11 hours, this single-mode sidekick features a steel pocket clip and weighs less than 3 ounces for easy carry—and it comes in five color options: black, red, blue, green, and orange. Built from top-grade aluminum for durability over the long run, the G20 penlight is IP54 stormproof and dust resistant, primed for the job. Built with COAST Alkaline-Dual Power technology, the G20 penlight is powered by 2 x AAA alkaline batteries and can also operate using a COAST ZITHION-X™ rechargeable battery (sold separately) for added convenience and cost savings.  

With Coast’s commitment to quality, the G20 Flashlight is impact resistant, weather-resistant and its LED is virtually unbreakable. The G20 Flashlight is backed by Coast’s lifetime warranty against defects in materials and workmanship. Tested and rated to ANSI/FL1 standards.

Subscribe & Save on Batteries

Save 15% when you sign up for a Coast battery subscription. Cancel anytime.

Accessories

Make the most of your purchase with these add-on products.

Extreme Performance Alkaline AAA Batteries

Regular price $9.49 $8.79

ZX110 Rechargeable Battery

Regular price $19.99
  • Features
    • Alkaline Dual Power

      Each COAST Alkaline-Dual Power is compatible with COAST Extreme Performance alkaline batteries and other standard alkaline batteries. Each product can also be powered with a COAST ported ZITHION-X™ rechargeable battery. This offers you the convenience of alkaline and the cost efficiency of rechargeable battery. 

    • Inspection Beam Optic

      Never miss a detail. The Inspection Beam cuts clean, consistent light from edge to edge to evenly illuminate work spaces. Engineered for pen lights that fit in the pocket, this beam simplifies up-close work and brightens hard-to-reach objects.

    • Single Mode

      The same light every time. Keeping it simple with COAST single-mode lighting means you can rely on an even, bright white beam every time.

    • Stormproof

      Ride out storms with light—your crushproof, weatherproof area light shines bright or sends a signal when the wind and rain cause outages.

    • Water Resistance

      Don’t worry about the weather. COAST lights that have passed the IP54-level resistance tests are splash-resistant and built with durable materials that stand up to nature.

  • Specifications
    • Battery Type 2 x AAA (Alkaline) or ZX110 (Sold Separately)
    • Beam Distance (High) 68 ft / 21 m
    • Color Temperature 7700k
    • Compatible Sheath No Sheath Available
    • CRI 73
    • Diameter (Body) 0.63 in / 1.6 cm
    • Included 2 x AAA Batteries
    • Length 5.7 in / 14.4 cm
    • Light Output (High) Inspection Beam
    • Runtime (High) 11 h
    • Weight 2.4 oz / 68 g
    Tested and rated to the ANSI/PLATO FL 1 Standard
  • Alkaline Dual Power

    Each COAST Alkaline-Dual Power is compatible with COAST Extreme Performance alkaline batteries and other standard alkaline batteries. Each product can also be powered with a COAST ported ZITHION-X™ rechargeable battery. This offers you the convenience of alkaline and the cost efficiency of rechargeable battery. 

  • Inspection Beam Optic

    Never miss a detail. The Inspection Beam cuts clean, consistent light from edge to edge to evenly illuminate work spaces. Engineered for pen lights that fit in the pocket, this beam simplifies up-close work and brightens hard-to-reach objects.

  • Single Mode

    The same light every time. Keeping it simple with COAST single-mode lighting means you can rely on an even, bright white beam every time.

  • Stormproof

    Ride out storms with light—your crushproof, weatherproof area light shines bright or sends a signal when the wind and rain cause outages.

  • Water Resistance

    Don’t worry about the weather. COAST lights that have passed the IP54-level resistance tests are splash-resistant and built with durable materials that stand up to nature.

  • Battery Type 2 x AAA (Alkaline) or ZX110 (Sold Separately)
  • Beam Distance (High) 68 ft / 21 m
  • Color Temperature 7700k
  • Compatible Sheath No Sheath Available
  • CRI 73
  • Diameter (Body) 0.63 in / 1.6 cm
  • Included 2 x AAA Batteries
  • Length 5.7 in / 14.4 cm
  • Light Output (High) Inspection Beam
  • Runtime (High) 11 h
  • Weight 2.4 oz / 68 g
Tested and rated to the ANSI/PLATO FL 1 Standard