Heat conduction

4 posts / 0 new
Last post
knifeguyyy's picture
Last seen: 1 hour 8 min ago
Joined: 10/07/2021 - 00:28
Posts: 13
Location: West Virginia
Heat conduction

When will we see this fairly simple tech reach the flashlight world?


Lumen9000's picture
Last seen: 2 hours 11 min ago
Joined: 09/02/2021 - 09:14
Posts: 148
Location: Sweden

Well, you have to lead the heat away, and foremost, to something else. I have thought about it, but, where would you put the fins, the heat dissipating area?

fogofwar's picture
Last seen: 47 min 14 sec ago
Joined: 08/19/2021 - 05:38
Posts: 128
Location: Shenzhen, China

The bottleneck is thermal transfer to the air. Heat pipes are not going to solve this unless you want to burn your hands. Active cooling along with heat pipes which direct heat to the fan would help but it’s impractical for small lights.

The hope is for drivers to be more efficient (95% or higher efficiency), even then, a fraction of the photons will still hit the back of the emitter and heat up the light.

pinkpanda3310's picture
Last seen: 32 min 4 sec ago
Joined: 12/28/2013 - 08:45
Posts: 3038
Location: Perth

I never finished it but I tried to use a vapour chamber heatsink in the OL comp a few years back – https://budgetlightforum.com/node/47975