
Seeknite SD03 (2019) review
The Seeknite SD03 (SD03) released in 2019. It uses Cree XM-L2 LED, SMO reflector and 1 x 26650 Li-Ion battery. The powerful emitter in this diving light provides up to 1200 lm output, 22500 cd intensity, and a beam distance of 300 m.
This light has 3 modes of lighting. This light does not have memory function.
Table of contents:
Seeknite SD03 (SD03) specifications
- Brand
- Seeknite
- Name
- SD03
- Type
- SD03
- Rating
- Launch
- 2019
- Form
- diving light
Body
The aluminium body of flashlight treated with a Type III hard-anodized, anti-abrasive finish.
- Weight
- 168 g
- Length
- 138 mm
- Head diameter
- 38 mm
- Material
- aluminium alloy with HAIII hard-anodized finish
- Colors
- black
System
The emitter of SD03 manufactured by Cree, a US-based LED manufacturing company. The SD03 has a smooth reflector. The properly focused smooth reflector gives you a more cohesive hotspot and therefore throws better.
- Emitter
- Cree XM-L2 LED
- Color temperature
- 6500 K
- Reflector
- SMO
- Lens
- 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
- 1200 lm
- Intensity
- 22500 cd
- Throw
- 300 m
- CD/LM factor
- 18.75
Software
It has the SOS beacon function for an emergency situation. The SOS flashes Morse code so you can signal for help when needed.
- Modes
- 3 modes
- Mode memory
- no
- Ramping mode
- no
- Strobe
- no
- SOS/Beacon
- yes
Features
The battery indicator lets you know when the battery is low, charging, or fully charged. The SD03 cannot charge batteries directly. You may need an external charger to keep your battery going. A protected battery is recommended as the light itself does not have low voltage protection (LVP). This light does not have temperature control feature.
- Battery
- 1 x 26650 Li-Ion battery
- Battery indicator
- yes
- Charger port
- no
- LVP
- no
- Thermal regulation
- no
- Protection
- depth 100 meters
- AUX LEDs
- no
- Magnetic
- no
Accessories
The lanyard prevents accidental loss of the flashlight.
- Package contents
- lanyard
The performance of the Seeknite SD03 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 Seeknite SD03, then don’t hesite and signal the problem to us.
Seeknite SD03 (SD03) pictures

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