Wow, this is a lot of work.
In my opinion, using high efficiency LEDs, you can generate same amount of light but way lower temperature.
Also, did you heard about vapor chambers coolers?? One of a palm size easily cool down >100W without any fan, pump or any moving component.
The idea of liquid cooled lights if not new, but is more efficient to use narrower tubes / high speed coolant. Dont forget to add special coolant and not water - look for liquid cooling CPUs forums and there will see lots of arguments against bare water into copper pipes. Even better, use ethanols as are more efficient than water
In my opinion, using high efficiency LEDs, you can generate same amount of light but way lower temperature.
Also, did you heard about vapor chambers coolers?? One of a palm size easily cool down >100W without any fan, pump or any moving component.
The idea of liquid cooled lights if not new, but is more efficient to use narrower tubes / high speed coolant. Dont forget to add special coolant and not water - look for liquid cooling CPUs forums and there will see lots of arguments against bare water into copper pipes. Even better, use ethanols as are more efficient than water