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Why not turn it off?
Have not heard this, but I would say that with filament bulbs, it may not be a bad idea since they would heat up while on, then cool quickly if turned off in the water, and then suddenly heat back up when turned back on. But with the newer L.E.D. torches, I wouldn't think that would be as much of an issue. As for leaking or flooding, that shouldn't happen under ordinary usage unless the seal on the switch is about to go anyway.Back in the day, when we did our first night dive, the DM on the boat told us not to turn off the lights. If we wanted to go dark, to cover the beam. I think his rational was that most failures ( filaments, floods, etc.) happen when switching. Is this still the generally accepted wisdom
Back in the day, when we did our first night dive, the DM on the boat told us not to turn off the lights. If we wanted to go dark, to cover the beam. I think his rational was that most failures ( filaments, floods, etc.) happen when switching. Is this still the generally accepted wisdom
That's what I was taught as well. I still believe it's good practice. A failed light is a stress factor, and personally, I want as few of those as possibleBack in the day, when we did our first night dive, the DM on the boat told us not to turn off the lights. If we wanted to go dark, to cover the beam. I think his rational was that most failures ( filaments, floods, etc.) happen when switching. Is this still the generally accepted wisdom
Back in the day, when we did our first night dive, the DM on the boat told us not to turn off the lights. If we wanted to go dark, to cover the beam. I think his rational was that most failures ( filaments, floods, etc.) happen when switching. Is this still the generally accepted wisdom
... only if you're diving with a lantern ... once the flame goes out it's impossible to get it re-lit underwater ...
Seriously, I think this is a problem that technology resolved years ago ... except perhaps for us dinosaurs who still dive with HID lights ...
Night diving rocks! As mentioned earlier, if you are a little apprehensive, go with a larger group that agrees to stay close together. It will help calm your nerves, give you more light and allow you to enjoy your first couple night dives that much more.