100
Lumens
7H
Runtime
9
Modes
SD2
4-Color
Dive Beacon
4 Colors for
Versatile Signaling
Equipped with 4 light colors and 9 signal modes, it delivers flexible signaling support for different underwater environments
14500/AA Dual Compatibility
Supports either one 14500 battery or one AA battery for convenient replacement with easy-to-find power options wherever you go
Bright Signals at a Glance
Up to 100 lumens keeps signals clear and visible underwater for easier recognition
Long Runtime
That Stays Reliable
With over 7 hours of runtime, it delivers reliable support for full dive sessions and extended underwater signaling use
* The runtime data above is based on tests using an XTAR 14500 1200mAh Li-ion battery.
Twist to Control, Easy to Use
Rotate the body to power on or off and switch modes with ease
Power On/Off
After installing the battery, tighten the head to turn the signal light on; loosen the head to turn it off
Change Modes
After the signal light is turned on, quickly loosen and retighten the head to switch light modes
Mode Memory Function
After being off for more than 5 seconds, it automatically restores the last used light mode, making every use more convenient
Off for Over
5 Seconds
Automatic Low Battery Alert
When battery power runs low, the signal light automatically dims to alert you, making it easier to monitor battery status and prepare for replacement
Durability You Can Count On
Backed by 100-meter waterproof protection and an aircraft-grade aluminum alloy housing, it resists drops and corrosion with ease in demanding underwater environments
Lightweight and Easy to Carry
Weighing only 58g,it can be easily mounted to a BCD, tank, wetsuit, and more for lightweight carry with almost no added burden
Ready for More Adventures
Suitable for underwater signaling and a variety of outdoor activities, ready for more adventures anytime
Specifications
| Model | SD2 | ||||||||
| Light Color | White | Red | Blue | Green | |||||
| Light Mode | constant | flash | strobe | constant | flash | constant | flash | constant | flash |
| Output | 100lm | / | / | 30lm | / | 20lm | / | 60lm | / |
| Runtime（14500 1200mAh） | 3.3hrs | 7.4hrs | 7hrs | 3.3hrs | 7.4hrs | 3.3hrs | 7.2hrs | 3.3hrs | 7hrs |
| Waterproof Rating | IPX8（100m underwater） | ||||||||
| Impact Resistance | 1.5m | ||||||||
| Battery | 1*protected 14500 Li-ion battery/1*AA battery | ||||||||
| Housing Material | AL | ||||||||
| Storage Temp. | 0℃~40℃ | ||||||||
| Dimensions (mm) | 108（Length）x Φ25（Tube） | ||||||||
| Net Weight（g） | 58 (without battery) | ||||||||
Package
SD2
4-Color
Dive Beacon
100
Lumens
7H
Runtime
9
Modes
4 Colors for
Versatile Signaling
Equipped with 4 light colors and 9 signal modes, it delivers flexible signaling support for different underwater environments
14500/AA
Dual Compatibility
Supports either one 14500 battery or one AA battery for convenient replacement with easy-to-find power options wherever you go
Bright Signals
at a Glance
Up to 100 lumens keeps signals clear and visible underwater for easier recognition
Long Runtime
That Stays Reliable
With over 7 hours of runtime, it delivers reliable support for full dive sessions and extended underwater signaling use
* The runtime data above is based on tests using an XTAR 14500 1200mAh Li-ion battery.
Twist to Control
Easy to Use
Rotate the body to power on or off and switch modes with ease
Power On/Off
After installing the battery, tighten the head to turn the signal light on; loosen the head to turn it off
Change Modes
After the signal light is turned on, quickly loosen and retighten the head to switch light modes
Mode Memory Function
After being off for more than 5 seconds, it automatically restores the last used light mode, making every use more convenient
Off for Over
5 Seconds
Automatic
Low Battery Alert
When battery power runs low, the signal light automatically dims to alert you, making it easier to monitor battery status and prepare for replacement
Durability You
Can Count On
Backed by 100-meter waterproof protection and an aircraft-grade aluminum alloy housing, it resists drops and corrosion with ease in demanding underwater environments
Lightweight and Easy to Carry
Weighing only 58g,it can be easily mounted to a BCD, tank, wetsuit, and more for lightweight carry with almost no added burden
Ready for More Adventures
Suitable for underwater signaling and a variety of outdoor activities, ready for more adventures anytime
Specifications
