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User  Manual

®

The All-Round Flashlight Expert

Features

·

A handy

,

 versatile, tiltable worklight

·

Two high-performance LEDs emit white and ultraviolet light

·

Up to 45 lumens white light

·

500mW radiant power, 365nm wavelength ultraviolet light

·

For currency inspection and document examination, anti-forgery and

   fluorescent detecion

·

Over 120 degree adjustable angles with one-handed operation

·

Integrated intelligent Li-ion battery charging circuit (via micro USB charging 

port)

·

Dual switch design offers access to all functions via one-handed operation

·

Direct access to red/blue police warning signal mode

·

A screw fastened clip for multiple purposes

·

Constructed from durable Polycarbonate materials

·

Extremely lightweight, compact and portable

·

Impact resistant to 1 meter

Dimensions

Size: 2.91” x 0.94” x 0.62” (74mm×24mm×15.8mm)
Weight: 0.88oz (25g, with battery and clip)

Accessories 

Key ring 

Output & Runtime

Operation Instructions

Dual Switch Description

The upper switch (closer to the head) controls the white and UV LEDs, the 
lower switch controls the red/blue police warning signal.

White And UV Light Operations
Turn On

With the Thumb LEO turned off, press the upper switch to turn the Thumb LEO 
on.

Light Modes

Within three seconds of activation, press the upper switch repeatedly to cycle 

The red power indicator will stay on to indicate 
charging in progress, it will turn green to 
indicate charging completed.

Note: 

Recharge the Thumb LEO when output 

appears to be dim. The charging process takes 
approximately 3 hours to complete.

through “White-UV-Standby” modes.

Turn Off

To turn the Thumb LEO off, cease any operation in white mode for three 
seconds, and press the upper switch.

Red/Blue Police Warning Signal Operations

In any status (including standby), press the lower switch to turn red/blue police 
warning signal on.

Lockout/Unlock

With the Thumb LEO turned off, press both switches simultaneously to lockout 
the Thumb LEO. The red/blue power indicator will blink three times to indicate 
the lockout status. In the lockout status, all functions will be rendered 
inoperative. To unlock, press both switches simultaneously again.

Charging

Remove the port cover to expose the USB charging port. Connect the charging 
port to an external power source (adapter, computer or other device) via a USB 
cord.

Warranty Service

All NITECORE products are warranted for quality. Any defective /malfunctioning 
NITECORE Tube can be repaired free of charge for a period of 24 months from 
the date of purchase. Beyond 24 months, a limited warranty applies, covering 
the cost of labor and maintenance, but not the cost of accessories or 
replacement parts. The warranty is nullified in either or both of the following 
situations:
1. The product(s) is/are broken down, reconstructed and/or modified by  
    unauthorized parties.
2. The product(s) is/are damaged through improper use.
For the latest information on NITECORE® products and services, please contact 
a local NITECORE® distributor or send an email to [email protected].

All images, text and statements specified herein this user manual are for 

reference purpose only. Should any discrepancy occurs between this manual 
and information specified on www.nitecore.com, information on our official 
website shall prevail. SYSMAX Innovations Co., Ltd. reserves the rights to 

interpret and amend the content of this document at any time without prior 
notice.

SYSMAX Innovations Co., Ltd.

TEL: +86-20-83862000 

FAX: 

+86-20-83882723  

E-mail: 

[email protected]  

Web: www.nitecore.com

Address

: 

24/F, TCL Plaza, No. 18 Haizhou Road, Haizhu District, 

Guangzhou, 510335, Guangdong, China

Thanks for purchasing NITECORE!

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NITECORE Flashlight

Thumb LEO

45

*

White

-

-

-

-

-

-

UV

Police Warning Signals

2

h

>

48

h

2

h

LUMENS

24m

 IP65

(Dust & Water Resistant)

150

 cd

1

m (Impact Resistant)

NOTICE:

Stated data has been
measured in accordance with 
the international flashlight 
testing standards ANSI/NEMA 
FL1 using an integrated and 
fully charged 3.7V 220mAh 
rechargeable Li-ion battery 
under laboratory conditions. 
End-user results may vary due 
to individual usage habits and 
environmental conditions.

THUMNB2

502LEO2

2

Made in China

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