Peak Eiger 10280 overheat?

[DaKar]

Hi mates,
Finally I bought a Peak Eiger 10280 as EDC keychain flashlight and I received it a couple of days.
In the first tests I felt the flashlight in full power gets hot in a short time.

After a minute the head is hot.
After two minutes the body is also hot.
After three minutes seems the brightness gets a little down.
After four minutes I worry and shut down the flashlight.

Guys, you have similar problems of heat?, it's normal?.

The configuration of the flashlight is as follows:

Product: 10280 - Peak Eiger
Options: Body - 10280 Short Key Lug - Knurl SS
Engine/Head - Small Optic - Nichia 219 CRI
Levels - 1. Gen 2 QTC (multi level)

Thanks a lot!

 

[Imon]

It's a very small flashlight.
I have a Eiger 10180 and it heats up quickly as well.

That should be expected though and, in fact, it's a positive thing. You want there to be efficient heat transfer from the LED to the body of the light. Unfortunately the flashlight is simply too small for effective heat dissipation.

 

[ElectronGuru]

+

At the levels needed to generate that much heat, a 10280 won't run very long. The configuration is intended for intermittent use at full power. For regular 5+ minutes at full power, better to use a larger configuration.

 

[jabe1]

I consider my Eiger 10280 to be a backup light, to be used primarily in an emergency. They are capable of high output, but with such a small mass, I like to keep the output to the lower end, finding keyholes and reading maps etc. I use my EDC for most everything.

Also keep in mind that what you did could have fried a similar sized light. They are well built. But the physics of thermodynamics can't be fooled.

 

[yoyoman]

I'm the opposite. My Eiger 10180 is my primary light and is always in my pocket. Output below high is great for walking in the dark, finding keyholes and reading. When I need more light or more throw or significant runtime, then I go to my bigger lights.

Conducting heat away from the led is a good thing. My favorites are the Maratac cu AAA and AA running on 10440 and 14500 Li-ions, respectively. The whole body warms up.