
Imalent RT90 (2021) review
The Imalent RT90 (RT90) 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 4800 lm output, 427980 cd intensity, and a beam distance of 1308 m.
This light has 5 modes of lighting. The memory function is a nice feature, the light will remember the last used mode. The RT90 flashlight is rechargeable easily via USB port.
Table of contents:
Imalent RT90 (RT90) specifications
Brand | Imalent |
---|---|
Name | RT90 |
Type | RT90 |
Rating | |
Launch | 2021 |
Form | flashlight |
Body
The aluminium body of flashlight treated with a Type III hard-anodized, anti-abrasive finish.
Weight | 428 g |
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Length | 127.5 mm |
Body diameter | 51 mm |
Head diameter | 65 mm |
Material | aluminium alloy with HAIII hard-anodized finish |
Colors | black |
System
The emitter of RT90 manufactured by Luminus, a US-based LED manufacturer. The RT90 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 | Luminus SBT90.2 LED |
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Color temperature | 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 | 4800 lm |
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Intensity | 427980 cd |
Throw | 1308 m |
CD/LM factor | 89.16 |
Software
The RT90 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.
Modes | 5 modes |
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Mode memory | yes |
Ramping mode | no |
Strobe | no |
SOS/Beacon | no |
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 | 4 x 18650 Li-Ion batteries |
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Battery indicator | yes |
Charger port | magnetic USB |
LVP | yes |
Thermal regulation | yes |
Protection | IPx8 |
Impact resistance | 1.5 m |
AUX LEDs | no |
Magnetic | no |
Accessories
The package includes a holster to safely store your flashlight. The lanyard prevents accidental loss of the flashlight.
Package contents | 2 x spare o-rings lanyard magnetic USB charger cable nylon holster |
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The performance of the Imalent RT90 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 Imalent RT90, then don’t hesite and signal the problem to us.
Imalent RT90 (RT90) pictures

Imalent RT90 (RT90) comparisons
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