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Notice: The above-mentioned parameters (tested by 2500mAh Ni-MH battery in Lab) are 
approximate and may vary between headlamps, batteries and environments.   

 
Operation Instruction 

Light turning on/off 
Depress the button switch in the top of the battery case to turn the light on/off; 
General mode 
When turn on the light, it will enter into the general mode automatically. Depress and hold the 
button switch (for over 1 second), the light can select brightness levels in the order of 
High

Low

Mid

Cycle. The light can memorize the working brightness level within 1 second; 

Mode selection 
When the light is on, a fast double depress on the button switch can transfer between the general 
mode and the SOS flashing mode. 

 
Battery Specifications 

Type

 

Dimensions

 

Nominal 

voltage

 

Usability

 

 

Ni-MH battery 

AA 

1.2V 

Recommended 

 

Alkaline battery 

AA 

1.5V 

Usable 

 

Non-rechargeable battery 

(Lithium) 

AA 1.5V Usable 

 

Rechargeable battery 

(Li-ion) 

14500 3.7V  Banned 

×

 

 
Battery Replacement 

Unscrew the tail cap (the side without the button switch) to put in the battery with the cathode

 

side 

(-) toward the tube bottom, screw the tail cap back on to test. 

 
Usage and Maintenance   

 

Please do not disassemble the sealed head, doing so can cause damage to the light and will 

void the warranty.   

  High-power light should use battery with high current discharge capability; We suggest using 

high-performance Ni-MH rechargeable battery, using alkaline battery will decrease the runtime of 
this high-intensity light. 

  Please use batteries of high quality, and take out the battery if you do not use the light for a 

long time, or the light can be damaged by electrolyte leakage or battery explosion which is caused 
by low quality battery. 

The o-ring may be worn out after using for a long time. If it happens, please replace the o-ring 

with a new one to keep the light properly sealed against water. 

 Please clean the contacts of your light from time to time, especially if the light flickers or 

doesn't light up. There may be several reasons for a flickering or not working light: 
Reason A: The battery needs replacing. 
Solution: Replace the battery (Please confirm the correct installation of anode and cathode). 
Reason B: The threads, PCB board contact or other contacts are dirty.   

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