Tighter beam does not mean "bigger lumen"...
Newbie LED dive/surface light help?
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Tighter beam does not mean "bigger lumen"...
plazma
Newly Enlightened
- Joined
- Jun 24, 2008
- Messages
- 8
But it usually means higher lux readings for the spot.
gcbryan
Flashlight Enthusiast
I understand that. My two comments were not related however.
The beam is tighter in the MC-E die than that of the P7.
The lumen output with appropriate bin and considering how they are driven is very similar.
In this case however the 670 lumen quoted is fairly accurate for this bin and how it is driven. The 900 lumen output is not accurate for the bin used and how it is driven.
COAST
Enlightened
Darn. If he only wanted to go about 50 feet, Ra Clicky 170 Executive with a narrow beam would do the trick!
gcbryan
Flashlight Enthusiast
I'm not familiar with that light. Does it use a reverse clicky? Why is it immune from water pressure turning the light off?
I just wanted to thank you all. This is a great discussion for me. It's opening the door to more (or less) possibilities. I'm learning the what I read in much of the advertising is bunk; you get what you pay for; and there may be a light or two out there that my wallet and my sense of quality can agree with.
gcbryan
Flashlight Enthusiast
I think you've got the salient points but I would add that you don't even necessarily "get what you pay for".
I think it's more accurate to say that "you get what you get".
Cheap is sometimes cheaply made but throwing money at something isn't necessarily better.
There's a lot of well made and very overpriced and outdated technology out there.
I think it's more accurate to say that "you get what you get".
Cheap is sometimes cheaply made but throwing money at something isn't necessarily better.
There's a lot of well made and very overpriced and outdated technology out there.
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COAST
Enlightened
Only to ~65 feet it's immune to turning off..... It has a fwd clicky... It's tactical. Try executive if you want reverse and non-protruding. But tailstand it still not capable...
65 static
gcbryan
Flashlight Enthusiast
With a forward clicky it won't turn off. It will turn on and stay on however (with increasing water pressure).
If it's tested to 65 fsw static it's not going to work as a dive light. It would work it looks like in a swimming pool and to similar depths for limited periods of time. It's not a dive light however.
COAST
Enlightened
True, it could handle up to 65ft so it's not bad for a non-dive light. But youre right
Klem
Enlightened
Depending on the configuration...
Here's a shot of an old torch build using a momentary starter switch with thick rubber boot. Took this diving to 20metres and it worked. I would say the shape and thickness of rubber resisted the pressure to that depth at least. Did not take it any deeper.
I agree however...most torches with clickies will either be on for the entire dive for forward clickes, or not turn on as soon as pressure pushes in the switch for reverse.
Here's a shot of an old torch build using a momentary starter switch with thick rubber boot. Took this diving to 20metres and it worked. I would say the shape and thickness of rubber resisted the pressure to that depth at least. Did not take it any deeper.
I agree however...most torches with clickies will either be on for the entire dive for forward clickes, or not turn on as soon as pressure pushes in the switch for reverse.
