Haiku XP-G

[Tim W]

Thanks!

[nbp]

Bored at work today, thought I'd do an experiment. I grabbed our little handheld laser thermometer gun, whatever they are called, and thought I'd do some temperature readings on my Haiku on high. Here are my results..

I started the test with the light at 23*C, the temp it was just out of my pocket. The room's ambient temp was 22*C. I took the reading on the beveled edge of the head just below the fins, which seems to be the hottest part to me. I ran it for 10 minutes and took a reading once a minute.

0m - 23C
1m - 24C
2m - 25C
3m - 26C
4m - 26C
5m - 27C
6m - 27C
7m - 28C
8m - 28C
9m - 28C
10m - 28C

If I took a reading on the fins, it was usually about 1 degree warmer than the beveled part of the head. After shutdown, I tried to get a read on the emitter itself, but I am not sure if it was reading that properly. I was getting a value of about 30C, which seems pretty low, so maybe the reflector was goofing with the laser or something.

Just some fun data I thought you all would enjoy. I'm no expert on such things, but I guess what I take from it is that the thermal management of this light is pretty good. It seems that the design and allows for sufficient heat dissapation, and once warmed up, it's able to maintain a pretty stable temperature, well within the happy operating range of the LED.

[VladSh]

Don, e-mail sent

[McGizmo]

VladSh, Thanks for posting here. Your e-mail was in my spam folder but I found it and have now responded.

[VladSh]

Don, I am responded too

[pjandyho]

@nbp,

That is surprisingly cool Nick. I was expecting something like 30+ to 40 degree celsius. Now I wonder what the XM-L ones would show.

[jiuong]

Andy,

My XML seems to be as hot or should I say as cool as my High CRI Haiku at high.

Joe

[pjandyho]

Andy,

My XML seems to be as hot or should I say as cool as my High CRI Haiku at high.

Joe

That's good news! Was a little worried when I read one user commenting that it got too hot to touch when it turned on in his pocket.

[jiuong]

It must be in his pocket for quite sometime.
As you know, I use my lights when I bring my children for our evening walks,
and not once did the XML feel too hot to touch.

[pjandyho]

It must be in his pocket for quite sometime.
As you know, I use my lights when I bring my children for our evening walks,
and not once did the XML feel too hot to touch.

That is a relief. I hate hot lights and I would rather trade brightness just to ensure my lights doesn't get too hot to touch.

[spyrish]

That's good news! Was a little worried when I read one user commenting that it got too hot to touch when it turned on in his pocket.

I know it was too hot due to being extra insulated by my pocket and the heat having no where to go. I just used the
same light for 20+ minutes on high and had no problems holding it the whole time. BTW, it was an XR-E light engine.

[pjandyho]

I know it was too hot due to being extra insulated by my pocket and the heat having no where to go. I just used the
same light for 20+ minutes on high and had no problems holding it the whole time. BTW, it was an XR-E light engine.

Thanks for sharing. I figured it to be so after jiuong reminded me that it is insulated in your pocket. Just got my XM-L Haiku and Mule high CRI. Going to put it through it's paces and see for myself.

[carrot]

I don't know if I'm missing something... are the Haiku XP-G no longer available?

[nbp]

I don't know if I'm missing something... are the Haiku XP-G no longer available?

That is correct. XP-G Wave Sticky had been de-stickied. ;(