BATTERY OPTION:

1. Internal battery with side USB charging

2. 3x 21700 battery in magazine (no charger)

3. 3x 21700 battery in magazine (Incl TF TR-018 charger)

Features

LED OPTION

– Option1: Utilizes 8x CREE XHP70.2 LEDs (6500K) with a max output of 41,500 lumens
Maximum beam intensity of 160,000 cd, and maximum throw distance of 800 meters
– Option2: Utilizes 8x CREE XHP70.2 LEDs (5000K) with a max output of 39,425 lumens
Maximum beam intensity of 144,400 cd, and maximum throw distance of 760 meters
– Option3: Utilizes 8x LUMINUS SFT40 LEDs (6500K) with a max output of 20,000 lumens
Maximum beam intensity of 360,000 cd, and maximum throw distance of 1,200  meters
Integrated precision digital optics technology provides extreme reflector performance
Utilizes dual-sided AR coated, 99% transmittance toughened glass lens
A step-down constant current circuit design with an efficiency rate up to 98%

Buil-in 10.8V / 4200mAh li-ion battery pack (made by 3x 3.6V/4200mAh 21700 battery cells) or

Power by 3x high drain 21700 batteries

Fast USB Type-C charging with discharging function available (not in 3x 21700 battery option)

Build in battery Features
1.8 hours for full charging, 1.5 hours for full charging over 90% 

Built-in intelligent adaptive charging and discharging function and protocols of QC3.0 & PD3.0

With advanced intelligent temperature regulation module, MK38 regulates its output and adapts to the ambient environment, maintaining optimal performance
Electronic reverse polarity protection and over-discharge protection
Integrated power indicator under the side switch indicates remaining battery voltage
Integrated indicator near USB-C port indicates the status of charging & powerbank discharging
Multi-switches design, clear division:
– Stainless steel side switch control the light to turn on/off and change modes etc
– Front switch on handle control 2x waterproof cooling fans to turn on/off
– Rear switch on handle control the light to turn on/off and change modes etc
User interface is simple and friendly, easy one-hand operation:
– From OFF, long press to ECO modes.
– From OFF, single press to General modes.
– Double click to Turbo from any modes (except LOCK-OUT)
– From OFF, quick triple click to Special modes (Strobe / Beacon / SOS to select)
– From OFF, quick quadrple click to lock-out the light
CNC machined from durable aircraft-grade aluminum alloy
Surface finish (option): Premium type-III hard-anodized or Micro-arc oxidation
Stainless steel strike bezel is used to break windows in an emergency situation
Triple-interface on flashlight head: Stainless steel side switch, UNC1/4″ triple hole, waterproof 4PIN connector socket
Built-in UNC1/4″ tripod hole, MK38 can be directly mounted to a tripod, turning it into a camp light or a fixed supplementary light
Utilizes stainless steel side switch with CD pattern surface for good touch feelings
Detachable handheld handle meets various lighting demands
Triple-sided premium cooling fins improve heat dissipation performance
Built-in double-row cooling fans on the handle to blow effectively cooling fins through outside
Convenient tail-stand capacbility
IPX-7 waterproof standard (1 meters under water)
Impact resistant to 1 meter

What’s package Included?

1x Manker MK38 flashlight (built-in battery pack or 3x 21700 as per top selection)
1x Detachable handle
1x USB Type-C cable (build in battery option)
1x Super charging adapter (Plug option: European) (build in battery option)
1x Quick release screw
1x Stainless steel tag tool
1x Lanyard
1x User manual

Build in battery OPTION

Size & Weight

3x 21700 Size and Weight

Technical Data

MK38 with 8x CREE XHP70.2 LEDs 6500K:

Modes/Level                                                           Luminance             Runtime
Turbo mode – Turbo level (Thermal regulation):        41,500 lumens        1 hours 30 minutes
General mode – High level (Thermal regulation):       20,000 lumens        1 hours 40 minutes
General mode – Mid3 level (Thermal regulation):       10,000 lumens        1 hours 50 minutes
General mode – Mid2 level:                                     5,000 lumens        2 hours 20 minutes
General mode – Mid1 level:                                     2,200 lumens        5 hours
General mode – Low level:                                      1,000 lumens       10 hours
ECO mode – L4 level:                                                400 lumens       20 hours
ECO mode – L3 level:                                                180 lumens       28 hours
ECO mode – L2 level:                                                 80 lumens        50 hours
ECO mode – L1 level:                                                 40 lumens        66 hours
Special mode – Strobe:                                        25,000 lumens         –
Maximum light intensity: 160,000 cd
Maximum beam distance: 800 meters
Waterproof standard: IPX-7, 1Meters under water
Impact resistant: 1 meters

MK38 with 8x CREE XHP70.2 LEDs 5000K:

Modes/Level                                                            Luminance               Runtime
Turbo mode – Turbo (Thermal regulation):                39,425 lumens          1 hours 30 minutes
General mode – High level (Thermal regulation):       19,000 lumens          1 hours 40 minutes
General mode – Mid3 level (Thermal regulation):         9,500 lumens          1 hours 50 minutes
General mode – Mid2 level:                                      4,600 lumens          2 hours 20 minutes
General mode – Mid1 level:                                      2,090 lumens          5 hours
General mode – Low level:                                          950 lumens        10 hours
ECO mode – L4 level:                                                 400 lumens        20 hours
ECO mode – L3 level:                                                 180 lumens        28 hours
ECO mode – L2 level:                                                   80 lumens        50 hours
ECO mode – L1 level:                                                   40 lumens        66 hours
Special mode – Strobe:                                          23,750 lumens          –
Maximum light intensity: 144,400 cd
Maximum beam distance: 760 meters
Waterproof standard: IPX-7, 1Meters under water
Impact resistant: 1 meters

MK38 with 8x LUMINUS SFT40 LEDs 6500K:

Modes/Level                                                               Luminance          Runtime
Turbo mode – Turbo (Thermal regulation):                 20,000 lumens         2 hours
General mode – High level (Thermal regulation):        10,000 lumens         2 hours 15 minutes
General mode – Mid3 level (Thermal regulation):          5,000 lumens         2 hours 30 minutes
General mode – Mid2 level:                                       2,500 lumens         3 hours
General mode – Mid1 level:                                       1,300 lumens         6 hours
General mode – Low level:                                           650 lumens       12 hours
ECO mode – L4 level:                                                  320 lumens       22 hours
ECO mode – L3 level:                                                  160 lumens       33 hours
ECO mode – L2 level:                                                    80 lumens       50 hours
ECO mode – L1 level:                                                    40 lumens       66 hours
Special mode – Strobe:                                           12,000 lumens         –
Maximum light intensity: 360,000 cd
Maximum beam distance: 1,200 meters
Waterproof standard: IPX-7, 1Meters under water
Impact resistant: 1 meters

More information, please check the table on the photo as belows:
(* Note: You can open this photo in new tab on your Google chrome to enlarge.)

Operating Instruction

※ Note: The front switch on the handle can turn on/off the cooling fans. The stailess steel side swtich on flashlight head and the rear switch on the handle can control flashlight ON/OFF, mode operation etc.

Cooling Fan Operation
ON/OFF: In any state (except LOCK-OUT), single click the front switch on the handle to turn on 2x cooling fans. A single click after this turns the fans OFF.
△ Note: When the light is ON, Single click side switch (or rear switch) also to turn off the cooling fans.

Mode Operation
ON/OFF: When the light is OFF, any click the side switch (or the rear switch) to turn the light ON. When the light is ON, just single click the side switch (or the rear switch) to turn the light OFF.

ECO Modes: From OFF, simple press and hold down the side switch (or the rear switch) to activate ECO modes. press and hold down the side switch (or the rear switch) again after this activates. the light cycle through “L1->L2->L3->L4” (or “L4->L3->L2->L1”). When the light cycle to the last level “L4” (or “L1”), the light will stop to cycle and stay at last level. If you want to select one level you need, just release the side switch (or the rear switch) while the light cycling. If you press and hold down the side switch (or the rear switch) again, the light will be cycled through opposite direction.
△ Note: After activate ECO modes, single click to turn OFF the light; double click to activate Turbo mode; quickly triple click to activate Special modes.

General modes: Single click the side switch (or the rear switch) to activate General modes. Press and hold down the side switch (or the rear switch) agin after this activates. the light cycle through “Low->Mid1-Mid2 ->Mid3->High” (or “High->Mid3->Mid2->Mid1->Low”). When the light cycle to the last level “High” (or “Low”), the light will stop to cycle and stay at last level. If you want to select one level you need, just release the side switch (or the rear switch) while the light cycling. If you press and hold on the side switch (or the rear switch) again, the light will be cylced through opposite direction.
△ Note: After activate general modes, single click to turn OFF the light; Double click to activate Turbo mode; Quickly triple click to activate Special modes.

Turbo mode: Double click the side switch (or the rear switch) to activate Turbo from any other modes (except LOCK-OUT).
△ Note: After activate Turbo mode, single click to turn OFF the light; double click or long press to activate General modes; quickly triple click to activate Special modes.

Special modes: From OFF, quickly triple click the side switch (or the rear switch) to activate strobe. From strobe, press and hold down to cycle through the other safety modes; Beacon > SOS > back to strobe.
△ Note: After activate Special modes, single click to turn OFF the light; double click to activate Turbo mode; quickly triple click to activate General modes.

Breathing light mode: From OFF, click and hold for 3 seconds and release. LED indicator under the side switch will start to breath. There is nothing particular about this except that it is a cool mood light. Click once to turn off.
△ Note: While holding down the side switch (or the rear switch) for 3 seconds, MK38 will activate one level of ECO modes and turn off automatically, and then LED indicator under the side switch will turn on.

LOCK-OUT / UNLOCK: Locking out the light when not in use is highly recommended. From OFF, quickly quadruple click (simply click 4 times fast) to LOCK-OUT. The light will then a blink to indicate that it has been LOCKED. To UNLOCK, quickly quadruple click (simply click 4 times fast) again, the light will turn on to indicate it has been unlocked.

Memory function: From OFF, single click (or long press) the side switch (or the rear switch) to activate the light level at General modes (or ECO modes) last used.

BUILD IN BATTERY GRAPH

Battery packing charging & power bank function

Battery pack charging:
1. Please switch off the light and plug the USB Type-C charging cable into the included standard adapter, then connect another USB Type-C socket of the charging cable to the light.
2. MK38 have intelligent identified charging function. When battery pack charging, the indicator near USB-C port will be red constant ON, the indicator will be OFF after battery pack charging is completed.
3. Be sure to close the anti-dust USB cover once battery pack charing is completed.

Power bank function:
1. Please switch off the light and connect the USB Type-C socket of the included charing cable to the light, then connect another USB Type-C socket of the charging cable to the digital device with a USB type-C charging port.
2. MK38 have intelligent identified discharging function. When battery pack discharging as power bank, the indicator will be red constant-ON.
3. Be sure to close the anti-dust USB cover once the battery pack discharging is completed.

* Note:  
A. You can turn the light ON / OFF and operate all modes when charging & discharging.
B. Battery pack can be full charged in approximately 1.8 hours with the included standard adapter and USB Type-C charging cable.
C. Recharge a stored every four months to maintain optimum performance of the battery.
D. When Connecting to the power bank with the same PD protocol, It might fail to be charged if the protocols are not compatible with the device. For example, Power bank is charging to MK38, or MK38 is charging to the power bank.
E. As a power bank, MK38 can charge only one digital device at a time. Please DO NOT use it to charge a digital device through any multi-port USB hub or charge two or more digital devices at the same time.

Battery Voltage Indicator

When the light is turned on, the built-in power indicator under the stainless steel side switch will show different color light to indicate remaining battery voltage:

While battery voltage > 10.2V, blue light turn on and last 3s.
While battery voltage 9.6V-10.2V, purple light turn on and last 3s.
While battery voltage 8.7V-9.6V, red light constant-on.
While battery voltage < 8.7V, the light turn off authomatically.

* Low voltage warning
When the battery voltage level drops below the present level, the light is programmed to downshift to a lower brightness level until lowest output is reached. When the battery voltage level still drops low under lowest output, it will shut off authomatically.

Intelligent Overheat Protection

Advanced intelligent temperature regulation technology allows MK38 to dynamically adjust output performance according to its body temperature.The light will accumulate a lot of heat when you use it at high-output levels for extended periods. When the light reaches the temperature of 65°C or above, the light will automatically step down its output to reduce the temperature. at the same time we also make more premium cooling fins on flashlight head and built-in duable-row fans to blow effectively these cooling fins through the outside to protect flashlight overheat.

* Note: DO NOT submerge the flashlight into any liquid when it is hot. Doing so may cause irrepareable damage to the light due to the difference of air pressure inside and outside of tube.

Product View

Handle Installing & Disassembling

3×21700 Battery option:

Battery requirement

* Note: We also high recommend the oridinary users to purhcase Samsung 40T unprotected flat-top 21700 batteries or Modell P42A unprotected flat-top 21700 batteries to drive MK38.

Battery Installation

1. Loose the tailcap counterclockwise and take it away.
2. As shown in the graph, insert batteries with the positive (+) to connect the glod plated copper positive round conductive plate on tailcap PCB, the nagative (-) to connect the glod plated copper spring on PCB.
3. Tighten the tailcap by aligning the two metal pins on the tailcap with the corresponding holes on the flashlight body, and rotate clockwise.

* Warning: 1. DO NOT mix rechargeable and non-rechargeable batteries
                 2. DO NOT mix batteries of different types/brands
                 3. DO NOT mix batteries of different power levels
                 4. DO NOT mix old and new batteries

Battery Voltage Indicator

When the light is turned on, the built-in power indicator under the stainless steel side switch will show different color light to indicate remaining battery voltage:

While battery voltage > 10.2V, blue light turn on and last 3s.
While battery voltage 9.6V-10.2V, purple light turn on and last 3s.
While battery voltage 8.7V-9.6V, red light constant-on.
While battery voltage < 8.7V, the light turn off authomatically.

* Low voltage warning
When the battery voltage level drops below the present level, the light is programmed to downshift to a lower brightness level until lowest output is reached. When the battery voltage level still drops low under lowest output, it will shut off authomatically.

Intelligent Overheat Protection

Advanced intelligent temperature regulation technology allows MK38 to dynamically adjust output performance according to its body temperature.The light will accumulate a lot of heat when you use it at high-output levels for extended periods. When the light reaches the temperature of 65°C or above, the light will automatically step down its output to reduce the temperature. at the same time we also make more premium cooling fins on flashlight head and built-in duable-row fans to blow effectively these cooling fins through the outside to protect flashlight overheat.

* Note: DO NOT submerge the flashlight into any liquid when it is hot. Doing so may cause irrepareable damage to the light due to the difference of air pressure inside and outside of tube.

Product View

Handle Installing & Disassembling

How to disassemble the handle?

1.Switch off flashlight and use tag tool (included accessory) to press the quick release screw on the counterbored hole, loose the screw counterclockwise, and then twist out the screw with your hand.
2.Lift up the handle, 4PIN connectors on the handle will take off from the connector socket on flashlight head. then you can place the handle to somewhere.
3. Please insert quick release screw into the connector socket and tighten it. At last please use tage tool (included acccessory) to press the screw to tighten it fully to get a waterproof, and then you can switch on flashlight as usual.

How to install the handle?

1.Switch off flashlight and use tag tool (included accessory) to press the quick release screw on the connector socket, loose the screw counterclockwise, and then twist out the screw with your hand.
2.Lift up the handle, make sure the the counterbored hole align the screw hole on flashlight body and 4PIN connectors on the handle will also align the connector socket on flashlight head.
3.Put the screw through the counterbored hole and make the screw tip into the screw hole on flashlight body, and then take tag tool (included accessory) to press the screw to tighen.

Warning

1. The flashlight is locked out default by us. Please quickly four-click to unlock it for the first use.
2. The flashlight is high-intensity lighting device capable of causing eye damage or other harms, so please avoid shining the light directly into anyone’s eyes. 3. The flashlight is recommended use for adult or under adult supervision. Please keep this flashlight away from children.
4. Please take off the dustproof filme from lens immediately for the first use.
5. This flashlight is capable of emitting intense heat when turning on for a long period of time. Remember to install the handle before using. Avoid touching the appearance of the flashlight.
6. DO NOT shine a object at close range, cover the flashlight, or place the head to face down when it is turn on. The heat bilt-up may objects to burn or even result in unexpected disasters.
7. After the cooling fans ON, DO NOT push your fingers into fans and force them to stop working as it will demage the fans.
8. DO NOT immerse the flashlight in seawater or other correosive media as it will damage the flashlight.
9. Please turn the flashlight off and make sure that its lock out if it is left unused, carried or transproted. The heat built-up due to accidental activation may melt the lens of the flashlight, cause close objects to urn, or even result in unexpected disasters.
10. The built-in battery pack is charged to approximately 50% by default and will not support maximum output and maximum runtime.
11. To maintain waterproof rating, please lubricate the o-ring with silicone safe lubricant and replace worn o-rings as needed.
12. Please recharge the product every 4 months when left unused for a prolonged time.
13. DO NOT disassemble or modify this product which can cause damage and will void the warranty.
14. When battery pack are full charged, led indicator will turn OFF. at the same time please don’t forget to take off USB Type-C charging cable and close the anti-dust USB cover immediately.
15. After uninstall the handle, please put the quick release screw into the connector socket on the flashlight head and tighten it to get a better waterproof.
16.After discharge as power bank is complete, please don’t forget to close the anti-dust USB cover immediately