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GearLight S400 PRO Rechargeable Headlight
GearLight S400 PRO Rechargeable Taillight
USB Charging Cables
User Manual
Warranty Card

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PACKAGE 

CONTENTS

CHARGE 

BEFORE

FIRST USE

S400 PRO

RECHARGEABLE

User 

Manual

FOR YOUR SAFETY, READ BEFORE OPERATING

The lights are not a replacement or substitute for your bicycle’s original reflectors.

Please check your local regulations before operating the lights.

WARNING

If the bike light does not turn on, or works intermittently:

• Charge the bike light for 3 hours or until the red LED indicator light turns green.

If the bike light does not charge:

• Inspect the bike light and charging cable for any damage or corrosion. 

• Check the USB charging cable connections and the power source.  

• Replace the USB charging cable.

Note: A computer in sleep mode might not charge the bike light. 

If the bike light appears dim or faded:

• Charge the bike light for 3 hours or until the red LED indicator light turns green.

• Replace the USB charging cable.  

If the problem persists, contact GearLight for a replacement.

052021

When the lights are not in use, store them with a moderate level of charge and in 

a cool place away from flammable materials.  Once every few months, discharge 

the batteries fully and recharge.

Irvine, California    |   USA    |   www.GearLight.com

GearLight warrants this product for one year from the date of purchase against any 

defects in material or workmanship.  This warranty does not cover normal wear and 

tear, nor damage resulting from misuse or neglect.  We will, at our discretion, repair, 

replace, or refund the purchase price of this product should we determine it to be 

defective.

Liability limited to the purchase price of this product.  GearLight shall not be liable 

for any incidental or consequential damages or any implied warranty on this 

product.  Some states do not allow the exclusion or limitation of incidental or 

consequential damages, so the above limitation or exclusion may not apply to you.

WARRANTY AND LIMITATION OF LIABILITY

Limited One-Year Warranty

Limitation Of Liability

TROUBLESHOOTING

MAINTENANCE

For product support, contact Customer Service:

[email protected]

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