... cost,Small size,Energy-saving,Eco-friendly for LED-UV spot curing,coating,printing..Multi-channel multi-band UV irradiation system/UV ... models:UVEC-4, UVEC-12, two controller, can choose for 1 radiation channel, 4 radiation channels, and 12 radiation channels; the wavelength ... can be provided from 240-1550nm. Multi-channel multi-band UV irradiation system/UV LED Spot Curing System ...