
Brinyte PT28 Oathkeeper (2019) review
The Brinyte PT28 Oathkeeper (PT28OK) released in 2019. It uses Cree XHP35 HD LED, SMO reflector and 1 x 18650 Li-Ion battery. The powerful emitter in this flashlight provides up to 1600 lm output, 15200 cd intensity, and a beam distance of 247 m.
This light has 4 modes of lighting. 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 PT28 Oathkeeper flashlight is rechargeable easily via USB port.
Table of contents:
Brinyte PT28 Oathkeeper (PT28OK) specifications
- Brand
- Brinyte
- Name
- PT28 Oathkeeper
- Type
- PT28OK
- Rating
- Launch
- 2019
- Form
- flashlight
Body
The aluminium body of flashlight treated with a Type III hard-anodized, anti-abrasive finish.
- Weight
- 110 g
- Length
- 140.8 mm
- Body diameter
- 25.4 mm
- Head diameter
- 26.5 mm
- Material
- aluminium alloy with HAIII hard-anodized finish
- Colors
- black
desert tan
System
The emitter of PT28 Oathkeeper manufactured by Cree, a US-based LED manufacturing company. The PT28 Oathkeeper 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
- Cree XHP35 HD LED
- Color temperature
- 6500 K
- Reflector
- SMO
- Lens
- AR coated glass
- Switch
- electronic side, mechanical rear
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
- 1600 lm
- Intensity
- 15200 cd
- Throw
- 247 m
- CD/LM factor
- 9.5
Software
The PT28 Oathkeeper 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 PT28 Oathkeeper 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.
- Modes
- 4 modes
- Mode memory
- yes
- Ramping mode
- no
- 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
- 1 x 18650 Li-Ion battery
- Battery indicator
- yes
- Charger port
- magnetic USB
- LVP
- yes
- Thermal regulation
- yes
- Protection
- IP68
- AUX LEDs
- no
- Magnetic
- no
Accessories
It comes with a battery. The battery must be fully charged before you first use your PT28 Oathkeeper. The package includes a holster to safely store your flashlight. The clip is useful to keep the light secured in your pocket. The lanyard prevents accidental loss of the flashlight.
- Package contents
- 18650 battery
clip
lanyard
magnetic USB charger cable
nylon holster
tactical ring
The performance of the Brinyte PT28 Oathkeeper 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 Brinyte PT28 Oathkeeper, then don’t hesite and signal the problem to us.
Brinyte PT28 Oathkeeper (PT28OK) pictures

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