L1D

[Sakkath]

My first post:

Got the L1D the other day, and used it all night at work all night. Great light!! Though i felt kind of dissy after using the light for alonger time and when i came to areas with "normal" lighting it was a relief for the eyes.

Anyone noticed that?

 

[Kilovolt]

My first post:

Got the L1D the other day, and used it all night at work all night. Great light!! Though i felt kind of dissy after using the light for alonger time and when i came to areas with "normal" lighting it was a relief for the eyes.

Anyone noticed that?

Hi Sakkath, I am pretty new here too but in any case welcome to CPF.

I have not really used my L1D for long periods but anyway I did not notice the problem you mention. Have you found in this respect a difference with your previous lights (incan presumably) ?

 

[greenstuffs]

My first post:

Got the L1D the other day, and used it all night at work all night. Great light!! Though i felt kind of dissy after using the light for alonger time and when i came to areas with "normal" lighting it was a relief for the eyes.

Anyone noticed that?

Were you playing with the strobe :lolsign:.
Other than that may be the green tint and the ringy beam made you dizzy.

 

[Sakkath]

The light's I usually use is Mag-charger and a Streamlight Stinger XT, i've never felt that kind of dizzyness when using them.

I played some with the strobe, Don't think that cuased the dizzyness, but probably made it worse :laughing:

 

[kurni]

Though i felt kind of dissy after using the light for alonger time and when i came to areas with "normal" lighting it was a relief for the eyes.

I'm guessing that you're accustomed to incandescent; I have the inverse effect, actually. Coming from Indonesia I'm accustomed to neon ('cool' white), and in AU there are a lot of 'natural' light (e.g. yellowish). After 10 years I still cannot adjust to 'natural' light, it gives me discomfort. I don't feel such discomfort with L1D, which happens to be 'cool' white (e.g. white, if you know know what I mean). May be you're not used to 'cool' white?

 

[xiaowenzu]

Though i felt kind of dissy after using the light for alonger time and when i came to areas with "normal" lighting it was a relief for the eyes.

I agree. I've used a Mag 6D incand and Surefire U2 (LED) extensively and found the incandescent to be more natural lighting. It just feels better on the eyes.

Obviously, we human beings enjoy sitting around 'campfires' than around a of 'bunch of Leds'. It just feels better. And also, Incandescents are closer related to fires ie, a wire heated up to high temperatures. Since the cavemen, we've all been attracted to this combustion. In this respect, incands are also closer related to natural sunlight, which is another 'burning object'. So therefore we as humans enjoy incand lights more than LEDS.

 

[kurni]

Obviously, we human beings enjoy sitting around 'campfires' than around a of 'bunch of Leds'.

:lolsign: Makes sense; we might be influenced by conditioning tho. Personally I prefer 'cool' white as overall lighting but I realised that I don't mind incandescent for reading. I do however, prefer to sit around a campfire rather than a bunch of leds

 

[rolling]

I think you suffert from the effects oft the PWD on your L1D.

 

[kurni]

I think you suffert from the effects oft the PWD on your L1D.

Is it PWD or PWM? I don't believe L1D has PWM.

 

[rolling]

my bad

 

[p97z]

Are you sure it's not an L0D? The L0D uses PWM and it makes me dizzy. The L1D doesn't use PWM and I feel fine when I use it. I've only had my L1D for a couple of days however...

I do notice the L1D has the ugliest beam i've ever seen. Maybe the artifacts are making you dizzy?

 

[Sakkath]

Leds instead of campfire, hope that will never happen :thumbsdow
Have to agree about the beam, thought it would be "perfect" but it has lots of defects
It is an L1D -Cree edition.. what is "pwm" btw? :huh2:

 

[AArcVarc]

The reason you got dizzy is because after you first get a new flashlight you become LIGHT headed. PWM is pulse width modulation and it is used in conjunction with some regulators behind the emitter to pulse the energy to the emitter at a frequency faster than the eye can detect in order to keep the voltage high as the available energy diminishes in the battery. The L1D does not do this, so it is not the reason you became dizzy. You can try various battery chemistry i.e. alkaline, lithium, Nimh or LiIon.

 

[bridgman]

I also found my eyes felt a bit strained after playing with the L1D-CE for a while. Didn't notice it so much with the SL Scorpion LED.

I read in a couple of posts that the new high intensity LEDs generate UV at the junction then use phosphors to convert that to white-ish visible light. Is that true ? If so, is there any chance that a bunch of UV is leaking out ?

 

[Sakkath]

Thanks for the replies.

First i used regular alkaline batteries, they worked fine accept for the dizzynes..

I've read on the forum that using AA 3.6V lithiums in the L1D would boost it's preformance, so I bought a couple just to try it out.

Though the L1D didn't work as it should with the batteries. I couldn't turn from turbo mode to "low" mode by tuning the bezel and just after a few minutes of use the beam began to dimish.

The battery i used was a "Saft" 3.6V AA Lithium "LS 14500"
"F99.166.D" is printed on the back of the battery, don't know what it means

Maybe it was a battery of poor quality..

 

[nexro]

Hi Sakkath,
I believe the batteries you bought (3.6V AA Lithium) are for low current devices. They are not the type to power up a flashlight
What you need are lithium-ion based ones which can be recharged. Check out AW sales thread in Dealer's Corner.