The human eye does a very good job at accounting for ambient light. Given that there are only 2ish lights in the dive industry (UWLD and Light+Motion, unless others exist?) it would be very hard for a human to notice.
CX2 anyone have one
- Thread starter formernuke
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It would be more than adequate as a backup light for any dives.
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Ok, so took it out on a night dive. Dive 91mins. Didn't notice any dimming but was flicking between all settings so hard to tell. It throws a lot of light. Not sure about 8 degrees, seems more like 12. Water was not clear so on full power backscatter was terrible. Was nice to have multiple levels of output. Other than the off center branding and a strange ribbed single sealing O ring seems like a reasonably well made light. Let's see how well it holds up.
I don't even know what a dimming rate is. I used it as a primary light in a cavern course for a couple of hours on high setting and I did not see it dim , so I call it zero!!
So in an L.E.D. light, there is a driver (that's an electronic circuit that controls the actual LED). The driver can either be a constant output driver - in this case the light will stay lit at the same intensity until it finally winks out. Alternatively the driver can reduce the voltage applied to the LED as the battery is drained. The effect is that the light dims over time. The dimming light will burn for much longer before winking out.
Some lights are designed to last as long as possible sacrificing brightness over time. Others sacrifice burn time to produce consistent brightness. It sounds like this light is designed to output consistent brightness until the battery can't do it anymore.
This light uses a 21700 cell, which was a good choice by diverite IMO. There's no real benefit to having super skinny dive lights that will only accommodate 18650's as many manufacturers do. That's 21mm by 70mm vs 18mm by 65mm btw.
Doctor Rig
Contributor
Just made my first dive with my new CX2. The visibility was poor... say 5 to 8 feet I’m guessing. The CX2 did a good job penetrating thru the water and I was pretty happy with the CX2. Definitely a narrow beam light. I just ordered a DR defusing filter, so that will be an interesting test when I get it.
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- Somewhere between here and there
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Dont love mine. 2 dives, no scratches, looks new. All original packaging, documentation etc. bought from DGX. 3 spare O rings too. Anyone interested, feel free to message.
I'll post up in the classifieds later today.
Cheers
I'll post up in the classifieds later today.
Cheers
Doctor Rig
Contributor
What specifically made you fall out love with your CX2? Have you decided what you’re going to replace it with?
OP
5-8 feet is poor??? Around here we call that good.
OP
- Messages
- 17,260
- Reaction score
- 9,459
- Location
- Somewhere between here and there
- # of dives
- 2500 - 4999
A few things, most of which will sound silly, but I too am silly.
The etched emblem/logo is off center.
Found it hard to find the push button with thick gloves if I turned light off, which I often do on night dives.
The one proprietary (?) O ring bothers me.
The threads squealed high enough to shatter glass out of box.
I bother easily, get put off things easily.
I like German lights, MB-Sub (no longer trading), Tillytec and Metalsub out of the Netherlands.
Don't get me wrong the CX2 is a fine light for the price, I just don't love it as much as I need too in order to keep it.
$135 shipped.
YMMV
The etched emblem/logo is off center.
Found it hard to find the push button with thick gloves if I turned light off, which I often do on night dives.
The one proprietary (?) O ring bothers me.
The threads squealed high enough to shatter glass out of box.
I bother easily, get put off things easily.
I like German lights, MB-Sub (no longer trading), Tillytec and Metalsub out of the Netherlands.
Don't get me wrong the CX2 is a fine light for the price, I just don't love it as much as I need too in order to keep it.
$135 shipped.
YMMV
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