What’s the differences between micro channel laser and macro channel laser?

The cooling for micro channel is better than macro channel laser.
The output power of micro channel is higher than macro channel laser.
The life time for macro channel is only 2.000.000-3.000.000 shots.while micro channel the life time can reach more than 40.000.000 shots.

Most of the Macro channel lasers are made in China.While most of the Micro channel lasers are made in Germany.

There is only one big waterway through the Macro channel diode stack. The macro channel laser bars are not all covered by water cooling. There is 1/3 part of the bar can contact the cooling water directly.The micro channel lasers have 3 layers of water road, all bar lies on the water road directly, so micro channel cooling is better.