halo 4dTwo different lasers are combined in the HALO 4D. The Halo ® fractional laser delivers two different wavelengths, 1470-nm and 2940-nm simultaneously. The Dynamis Fotona 4D ® usesThe next installment of Bungie's legendary Halo series, Halo 4 is the seventh game in the franchise and marks the start of a new trilogy developed by 343 Industries. Four years