... Transmission > 99.6% 4 Wavelength 1540nm 5 Gooch & House Air-cooled Q-switch QS080-2G-3D1DPSS systems, polarisation insensitiveMiniature size, conduction-cooled1 ... & Housego present probably the smallest, conduction-cooled, acousto-optic Q-Switch currently in production anywhere in the world. Specifically designed ... caused by non-proper use is not within the warranty. Air-cooled Q-switch QS080-2G-3D1