Image showing the arrangement of the later versions of the MEF or LIFE.1 power plant. The grey boxes arranged in groups at the top and bottom (just visible, shaded) are the laser beam-in-a-box systems. Their light, in blue, shines through the optical system into the yellow colored target chamber in the center. The machinery on the left pumps liquid lithium or flibe into the target chamber walls to cool the reactor, extract energy for generation, and produce tritium.