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USER MANUAL

Patented product, counterfeiting not allowed.

Shenzhen FEREI Lighting Co., Ltd

3rd Industrial Zone, Xiakeng Village, Tongle, Longgang District, Shenzhen 518116, China. 

TEL: 0086 755 8480 7942 / 0086 755 8480 7943

FAX: 0086 755 8480 7944. 

E-mail: [email protected] 

 Website: www.ferei.com

HL40AA II  PRODUCT SPECIFICATIONS

LED

CREE XML2 COOL WHITE

ANSI/FSC

MAX

CUSTOMIZED SETTING

POLICE 

STROBE

SLOW 

STROBE

FAST 

STROBE

SOS

LIGHT PER 100% 10% 20% 30% 40% 50% 60% 70% 80%

USERDEFINED

OUTPUT LM 1000 100 200 300 400 500 600 700 800

USERDEFINED

RUNTIME H

16

160

80

57

40

32

27

23

20

>16

RANGE M

OVER 200 METERS

MAXIMUM 

INTENSITY

23256 CD

LED

CREE XML2 NEUTRAL WHITE

ANSI/FSC

MAX

CUSTOMIZED SETTING

POLICE 

STROBE

SLOW 

STROBE

FAST 

STROBE

SOS

LIGHT PER 100% 10% 20% 30% 40% 50% 60% 70% 80%

USERDEFINED

OUTPUT LM 930

93

186 279 372 465 558 651 744

USERDEFINED

RUNTIME H

16

160

80

53

40

32

27

23

20

>16

RANGE M

OVER 150 METERS

MAXIMUM 

INTENSITY

5625 CD

WATERPROOF 

RATING

IPX4

ANTIDROP

1M

DIMENSION

30 MM HEAD DIAMETER

BATTERY

3 X AA BATTERIES

WEIGHT

168 G EXCLUDING BATTERY

NOTE:  THE ABOVE PARAMETERS WERE TESTED BY USING THE AA LR6 

HIGH POWER CAPACITY BATTERY

INTELLIGENT TEMPERATURE CONTROL INSTRUCTIONS

This product is designed with a temperature control circuit.
   The LED is a heating device that is sensitive to temperatures, 
especially high levels of power and brightness. High temperatures 
will easily damage or shorten the life of the LED. Ferei designs its 
products with an intelligent temperature-control circuit. It measures 
the temperature within the LED filament. As the structure of the 
lamp differs, the thermal conductivity of the entire lamp is not the 
same. In general, the constant surface temperature of the lamp is 
50˚C to 60˚C. When it exceeds its programmed temperature, it will 
automatically reduce its power to cool down , and the brightness 
decreases by small steps. After cooling-down (provided that battery 
voltage is sufficient) the power with brightness increases again. 
The process of improving its brightness is relatively discrete and will 
not produce a flashing effect.
   This stepping goes cyclically to maintain the user's safety and the
 light's functionality. In conditions of good air-cooling the lamp 
delivers light without stepping down even in high levels brightness 
mode. There are no preset timers for stepping, but real-time active
temperature measurements, So the actual runtime of the lamp base 
on active temperature control to faster or slower battery discharge, 
may be slightly longer or shorter runtime than the lamp of data 
provided .

WARM TIPS

In order to avoid accidents, please pay attention to the following 
tips: 

 

Never use damaged, discolored or leaking batteries.

 

Never use batteries with a damaged sleeve or foil covering.

 

Always use 18650 batteries with safety certificates.

 

If the light gets unusually hot when in use, turn it off and check 
battery appearance. 

 

Never store the battery into the battery holder.

 

Recharging is finished when the LED indicator turns to green.

 

The battery remains at a normal temperature during 
recharging. If it gets unusual hot, stop recharging and take the 
battery out.

 

Do not dissemble the charger kit by yourself if the battery 
couldn’t be recharged.

 

The battery can be used at any time once being recharged. If 
it is left unused for long periods, it should be recharged for 4 
hours every three months. After being charged they should be 
slightly discharged for 10-20 minutes before storage.

 

Be sure to always recharge the battery in a safe place and do 
not leave unattended while charging.

MAINTENANCE

Wipe the glass lens with a soft cloth at regular intervals to 

ensure maximum light transmittance (avoid using corrosive 
detergents).

Ensure the cable plug and inside of the battery box remain free 

of dirt and debris. 

Unplug the cable from the battery box when unused for 

extended periods.

WARNING

 

It is a lighting tool, not a toy. Keep it away from children.

 

Should not be aimed directly at the eyes of humans or animals

 

Do not place the light face / lens down when turned on.

 

The surface of the flashlight may become hot during extended use.

 

Do not dismantle or dissemble any structural parts of the light, especially 
the seal parts.

 

Dry the light surface with soft cloth immediately after exposure to water or 
any corrosive substance.

 

Always remove batteries during long periods of inactivity (more than 30 
days). 

 

Ferei reserves the right of interpretation of this manual.

Focusing  

LED Headlamp

HL

40

AA

II

 

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