This is the third Laser Energy Transmitter you can have. This is the T2 transmitter. It transfers 4 times much power per second (PPS) as the MK1 version.
The alternative recipe is far more expensive than crafting the desired item at your manufacturing plant, but allow you to get rid of the lower tier LET's.
14 mar 2018: Titanium plates are now required instead of bars
10 jan 2017: Added crafting requirement
10 jan 2017: Added alternative recipe
09 jan 2017: Added changelog template
08 jan 2017: Added machine template layout