What's in the box of XTAR SD1 dive beacon? A small box contains all accessories you need. A dive beacon, battery, lanyard...
Check JoGeo Techlab video for more detail of this mini beacon review.
4-colour Mini Dive Beacon
- Ideal for both underwater 100m diving and outdoor lighting
- 4 colour lights, 8 lighting modes
- Gently twist the body to switch among modes
- Compatible with CR123A/ Protected 16340
- Low power reminder function
- Memory function
- Enlarged lanyard hold for quick attachment
1.Can the SD1 dive beacon float and effectively locate divers?
SD1 is made of AL6063 aviation aluminum, so it cannot float on its own. Attaching SD1 to a D-ring and shortening the lanyard can prevent the issue of the dive beacon easily hiding behind diver’s thigh or tank, thus effectively locating the diver.
2.What is the approximate underwater visibility range?
The underwater visibility range of SD1 is approximately 12 meters, depending on the underwater environment and water quality.
3.Can CR123 rechargeable batteries be used in XTAR SD1?
If rechargeable batteries are used, they must have a protection circuit. If non-protected batteries are used, they must have a voltage of >3.6V.
4.Why does green appear brighter than other colors to the naked eye under the same light intensity?
When diving underwater, the fact that green light appears brighter to the naked eye is related to the absorption characteristics of water. This is because water has different absorption capabilities for different colors of light. Water molecules have a stronger absorption capability for red and blue light, while their absorption capability for green light is relatively weaker.
Despite its size it is truly a great flashlight. Beyond underwater use, where it is very convenient as a surface buoy marker or backup light, it can also be used outside the water, for example to ensure discreet lighting of small environments such as the interior of a Van or Camper. The dimensions, as mentioned before, are very small and the battery allows a use of 10 hours with intermittent beam and 5 hours with continuous beam.
These are great strobes at a great price
I am considering buying another XTAR SD 1 for my partner as it is an extremely cute little light. Feels very ergonomic in use!