Lumintop SD90 (2021) review

Luminus SBT90.2 LED
7500 lm output
730000 cd intensity
4 x 18650 Li-Ion batteries

The Lumintop SD90 (SD90) released in 2021. It uses Luminus SBT90.2 LED, SMO reflector and 4 x 18650 Li-Ion batteries. The powerful emitter in this flashlight provides up to 7500 lm output, 730000 cd intensity, and a beam distance of 1709 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 SD90 flashlight is rechargeable easily via USB port.

Table of contents:

Lumintop SD90 (SD90) specifications

Rated 3/5 based on 785 user votes.


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

Weight859 g
Length248.7 mm
Body diameter52 mm
Head diameter90 mm
Materialaluminium alloy with HAIII hard-anodized finish


The emitter of SD90 manufactured by Luminus, a US-based LED manufacturer. The SD90 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.

EmitterLuminus SBT90.2 LED
Color temperature5700 K
Lenstoughtened AR coated glass
Switchelectronic side


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.

Flux7500 lm
Intensity730000 cd
Throw1709 m
CD/LM factor97.33


The SD90 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 SD90 is intuitive, and lets you seamlessly ramp the output up and down over almost the entire output range. The SD90 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.

Mode memoryyes
Ramping modeyes


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. The SD90 flashlight can be used as a powerbank to recharge a device, such as a mobile phone.

Battery4 x 18650 Li-Ion batteries
Battery indicatoryes
Charger portUSB Type-C
Thermal regulationyes
Impact resistance1 m
Specialspowerbank function


The lanyard prevents accidental loss of the flashlight.

Package contents2 x spare o-rings
USB Type-C cable

The performance of the Lumintop SD90 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 Lumintop SD90, then don’t hesite and signal the problem to us.

Lumintop SD90 (SD90) pictures

Lumintop SD90 / SD90 photo Lumintop SD90 / SD90 photo Lumintop SD90 / SD90 photo Lumintop SD90 / SD90 photo
Lumintop SD90 / SD90

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