4 TIRF QUCHIPs with 488, 561 and 640 nm excitation lines. The chips have the following features: -Size 18x 20 mm and 170 µm thickness (1.5 H) -Sequential multi color imaging -Waveguide width 500 µm -Waveguide length 4.000 µm -8 independently addressable waveguides -Auto-alignment compatible -Online intensity surveillance -Penetration depth 80 - 100 nm -Mountable reservoir separately available