■Emergency procedure
If the main light fails, use the backup light, but do not continue diving with the backup light.
The entire team will immediately move to the exit point and end the dive.
If you lose sight of your buddy or team, block the light of your own underwater lights and look for the light of buddy or team underwater or chemical lights in a wide range, including the seabed and water surface.
If you still cannot find them, illuminate a wide area by your underwater light.
If the visavility is good, the light of the underwater light can reach the water surface, so it is important to illuminate not only the sea floor but also the middle layer and the water surface.
Buddy or team may notice you.
If you still can't find the buddy or team, exit according to pre-arranged emergency procedures.
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