Haikelite HK04 SST40 (2019) review

2019

4 x Luminus SST40 LEDs

9000 lm output

180625 cd intensity

3 x 18650 Li-Ion batteries

The Haikelite HK04 SST40 (HK04SST40) released in 2019. It uses 4 x Luminus SST40 LEDs, SMO reflector and 3 x 18650 Li-Ion batteries. The powerful emitter in this flashlight provides up to 9000 lm output, 180625 cd intensity, and a beam distance of 850 m.

The memory function is a nice feature, the light will remember the last used mode. It has a strobe function, which is one of the most effective self defense tools available. The HK04 SST40 flashlight is rechargeable easily via USB port.

Table of contents:

Haikelite HK04 SST40 specifications
Haikelite HK04 SST40 pictures
Haikelite HK04 SST40 comparisons

Haikelite HK04 SST40 (HK04SST40) specifications

Brand	Haikelite
Name	HK04 SST40
Type	HK04SST40
Rating	★★★★★ Rated 4/5 based on 1023 user votes.
Launch	2019
Form	flashlight

Body

The aluminium body of flashlight treated with a Type III hard-anodized, anti-abrasive ﬁnish.

Weight	370 g
Length	140 mm
Body diameter	46 mm
Head diameter	56 mm
Material	aluminium alloy with HAIII hard-anodized finish
Colors	black brown

System

The emitter of HK04 SST40 manufactured by Luminus, a US-based LED manufacturer. The HK04 SST40 has a smooth reflector. The properly focused smooth reflector gives you a more cohesive hotspot and therefore throws better. It has an AR coated lens.

Emitter	4 x Luminus SST40 LEDs
Color temperature	5000 K, 6500 K
Reflector	SMO
Lens	toughtened AR coated glass
Switch	electronic side

Performance

The throw is the calculated distance in meters at which the flashlight produces a light intensity of 0.25 lux. The candela per lumen (cd/lm) ratio can be used to determine if a flashlight has a spot or flood type beam. Well-focused spot beams can be over 100 cd/lm, tactical flashlights are typically between 20-100 cd/lm, and work lights are less than 10 cd/lm.

Flux	9000 lm
Intensity	180625 cd
Throw	850 m
CD/LM factor	20.07

Software

The HK04 SST40 has mode memory. Mode memory means that the light will remember the mode you were using when the light was last turned off, and when you turn it on again. The ramping mode of the HK04 SST40 is intuitive, and lets you seamlessly ramp the output up and down over almost the entire output range. The HK04 SST40 is tactical strobe ready. The strobe light is disorienting to the person it is aimed at which makes it difficult for them to concentrate. It has the SOS beacon function for an emergency situation. The SOS flashes Morse code so you can signal for help when needed.

Firmware	Anduril
Mode memory	yes
Ramping mode	yes
Strobe	yes
SOS/Beacon	yes

Features

The battery indicator lets you know when the battery is low, charging, or fully charged. This flashlight can charge the battery with an integrated charger, and it works with any USB power source. This flashlight has a built-in low voltage protection (LVP) to prevent damage to the cell from over-discharge, so protected cells are not necessary. The built-in thermal control automatically adjusts brightness output to prevent overheating.

Battery	3 x 18650 Li-Ion batteries
Battery indicator	yes
Charger port	USB Type-C
LVP	yes
Thermal regulation	yes
Protection	IPx7
AUX LEDs	no
Magnetic	no

Accessories

The lanyard prevents accidental loss of the flashlight.

Package contents	2 x spare o-rings USB Type-C cable lanyard

The performance of the Haikelite HK04 SST40 flashlight is measured according to the ANSI / NEMA FL1 Standard 30 seconds after switching the light on. The ANSI/NEMA FL1 2009 Standard is a set of flashlight performance guidelines.

The specifications above are based on the official data published by the manufacturer, but we also take user reviews into consideration. If you found an error or something lacking in the specifications above for the Haikelite HK04 SST40, then don’t hesite and signal the problem to us.