The EVO 4-100 puts 265 watts behind a 100 cm fixture, lifting PPF to 725 micromol per second. That extra punch suits a denser crop of fruiting tomatoes or peppers across a wider bed. The lens holds the beam at 90 degrees so the light reaches the plants, not the walls.
It shares the silent passive cooling of the EVO line, with an aluminium body and no fan to fail. Efficiency stays above 3 micromol per joule. IP65 sealing and a 3 year warranty are standard. The cable is chosen separately.