Multi Purpose Lamp: WISDOM Lamp 4

Lamp 4 Product video

Multi-purpose headlamp

Can be charged for a cellphone.

Rechargeable, USB charging.

3 brightness modes.

Water-proof, IP68.

SOS function.

Lamp 4 Features Charge Mobile Devices
Charge for Mobile Devices

Lamp 4 can be used as a power bank. It has 3 different output interfaces to fit different connector types and also charges very quickly. You can charge mobile devices at any time and any places with high efficiency!


Lamp 4 is water proof design. It is applied complete stainless steel
material for all the metal parts. It can even dive to 20 meters.

Three Brightness Modes
Three Brightness Modes

Lamp 4 has 3 brightness modes:
low bright,medium bright and super bright.
Fully satisfy your lighting needs.

Small Size and Lighter - able to float on the surface of the water
Small Size and Lighter - able to float on the surface of the water

The model Lamp 4C and 4D weighs only 128g.
Weighing lighter than other lamps in the same brightness class.
Lamp 4 is applied high efficient 18650 li-ion batteries.
This is why Lamp 4 has long run-time and is still light enough to float on the surface of the water.

Lamp 4 SOS mode

Hold the button for 3 seconds,
Lamp 4's SOS mode will be opened.
3 quick flashes and 3 slow flashes -
telling others that there are people
here who need help.

Battery Indicate
Battery Indicate

Hold the button for 1.5 seconds to enter Battery Indicate mode, the LED light source will give out weak light to tell you the remaining capacity of batteries.
Then, you can judge how long you can use the lamp.

Lamp 4 widely used Power bank
Use as Power bank

Power bank function distinguishes Lamp 4 from the past generation lamps. By switching USB cable connectors, Lamp 4 can provide charging function for most mobile phones and mobile devices. At the same time, it ensures a safe and quick charging process. Lamp 4 thus embodies the concept of “multipurpose”.

Family lighting
Family lighting

Optical lens #1 and #2, respectively, has the function of softening the light to a large angle or narrow angle. This makes Lamp 4 a very suitable choice in family life, especially for close range routine work or reading.

Climbing & Camping
Climbing & Camping

With more than 12 hours of continuous high brightness illumination, the international top rank of waterproof & dust-proof performance, extreme drop and pressure resistance, WISDOM Lamp 4 will light all the way for you, protect you from darkness, rain and dangerous when climbing or camping.


WISDOM Lamp 4 has high brightness, portable size, super waterproof and high corrosion resistance, which is suitable for application in moist, or at the same time slightly salty environment like fish farms. Convenient for farmers to wear and use in a continuous long time during work hours.


WISDOM Lamp 4 provides constant lighting for 6-60 hours, resists water, sweat, and has high turbulence resistance index. Optical lens # 3, # 5, # 6 are specially designed for riding. After applying the lenses, you can increase the light irradiation area of strong light, change the ordinary light to more professional night riding light.

Night fishing
Night fishing

The blue # 4 optical lens can change the ordinary white beam into blue beam, in case of not scaring away fish, effectively reflect the fluorescent float, and accurately determine the situation under water. In addition, the special light color can attract fish, reaching better night fishing result.


The super waterproof and compression resistant ability of Lamp 4 makes it able to work normally underwater at a depth of 20 meters (equivalent to the height of a five-floor building), and still undamaged under 50 meters. With optical lens, waterproof headstrap or backpack clip, it provides more convenient and interesting effects for users.

Lamp 4 detail
Man-machine Design

Round curve, streamlined profile, natural & comfortable appearance!

Lamp 4 close-up views

The battery inside Lamp 4 is maintenance-free. The protective PCB will prevent the battery from over charge, over discharge, over current and short circuit. WISDOM Lamp 4's safety and reliability are well guaranteed.

Features WISDOM Lamp 4 Specifications
Model Lamp 4A Lamp 4B Lamp 4C Lamp 4D
Continuous discharging time (h) 5 13 60 5 13 60 5 13 60 5 13 60
LED working current (mA) 1400 570 80 1200 470 80 740 290 55 580 230 45
Light power (W) 4.2 1.17 0.24 3.6 1.41 0.24 2.2 0.87 0.17 1.74 0.69 0.14
Initial lighting degree in 1 m (lx) 25000 12000 1800 21000 10000 1800 14000 7500 1500 12000 5500 1000
Light luminous flux (lm) 533 265 50 472 226 50 321 138 34 274 112 28
Rated capacity 7000 mAh 5200 mAh 3500 mAh 2600 mAh
Rated voltage 3.7 V
Short circuit protection time < 320 μs
Life span of the battery (Recharges) 1200 cycles (In reasonable working condition)
Charging time 5 h 4 h 4 h 3.5 h
Dimensions 84 x 69 x 50 mm; 3.3 x 2.7 x 2.0 in
Weight 169 g; 5.96 oz 125 g; 4.41 oz
Optional parts Transparent/colored optical lens (click to view)
Rack for bicycle (click to view)
Magnetic USB charger (click to view)

*HI, ME, LO stand for High, Medium and Low

Lamp 4 Measurements

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