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

ZX850 Rechargeable Battery
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Built-In USB-C Port
With a built-in USB-C port, your battery can be charged using a USB-C cord. Some COAST models can be charged both inside or outside the light.
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Dust Resistant
Take on any dirty work environment with this dust resistant light.
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Magnetic Base
Attach the light to magnetic surfaces. Lights with a Magnetic Base have magnets located on their base that allow the light to be attached to magnetic surfaces for easy storage or hands-free use.
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Pro-Tek Charging
Charge directly from AC, DC, and USB. Flashlights and headlamps with COAST PRO-TEK Charging include a direct-connect port for powering back up.
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Pure Beam Focusing Optic
Pack two powerful beams into one and seamlessly transition—with no halos or hot spots—between short and long-range viewing. COAST’s patented focusing technology adapts to your need. The Ultra View Flood beam delivers edge-to-edge clarity in a broad circle, and the BULLS-EYE™ Spot Beam sends a sharp ray of light at a distance with a transitional halo around the spot to increase the effective viewing area.
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Rechargeable Dual Power
Each COAST Rechargeable-Dual Power product comes with a ported ZITHION-X™ rechargeable battery or a non-ported ZITHION™ rechargeable battery and is compatible with either COAST Extreme Performance alkaline batteries or other brand-name battery types, depending on the product. This provides you the cost savings of using rechargeable and the flexibility of reverting to alkaline.
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Turbo Mode
The XP lights not only features standard light modes but also COAST’s signature Turbo Mode for overpowered light in critical situations.
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Twist Focus
Dial in the shape of light you need for the situation. COAST’s TWIST FOCUS™ system makes it easy to move between spot and flood beams by simply rotating the head of the flashlight.
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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.
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BATTERY TYPE ZX850 ZITHION-X™ Rechargeable Battery (Included) / 2 x CR123 (Not Included)
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Beam Distance (High) 400 ft / 122 m
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Beam Distance (Low) 118 ft / 36 m
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Beam Distance (Medium) 229 ft / 70 m
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Beam Distance (Moon Glow) 68 ft / 21 m
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Beam Distance (Turbo) 688 ft / 210 m
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Included ZX850 ZITHION-X™ Rechargeable Battery | One Meter USB-C Split Charging Cable (CR123 Batteries Not Included)
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Light Output (High) 530 Lumens
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Light Output (Low) 48 Lumens
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Light Output (Medium) 175 Lumens
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Light Output (Moon Glow) 16 Lumens
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Light Output (Turbo) 1500 Lumens
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Runtime (High) 8 h 30 min
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Runtime (Low) 30 h
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Runtime (Medium) 12 h
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Runtime (Moon Glow) 88 h
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Weight 4.37 oz / 124 g