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Serfas

SERFAS Thunderbolt USB Head Light

Durable Silicone Rubber Encased Light Body

Very Bright For Its Size – 90 Lumen Output

Highly Versatile Mounting Possibilities

4 Lighting Modes

Built-In USB Charging

Water Resistant Construction

Limited Lifetime Warranty
Serfas® warrants to the original purchaser that the product is free of defects in material, construction, and/or workmanship for the lifetime of the product.

Battery Warranty – One Year Coverage
Serfas® batteries are covered by a 1 year warranty from the original date of purchase.

Features:

  • USB Rechargeable
  • Charge Indicator Light
  • Includes Longer Strap To Allow More Mounting Options
  • Removable Straps Allow Endless Mounting Options
  • LED Strip Creates A Non-Directional Flood Of Light

Specs:

  • Modes:
    • High (90 Lumens): 1.5 hrs
    • Low (30 Lumens): 4.25 hrs
    • High Flash (90 Lumens): 2.5 hrs
    • Low Flash (30 Lumens): 8 hrs
  • Weight: 54 Grams With Bracket
  • Battery: 500 mAh Lithium Polymer