We offer high speed UV-VIS-NIR spectrometers that have integration times as low as 10 microseconds. This is done with onboard buffering with up to 50,000 spectra. This concept eliminates latencies associated with the data transfer between the PC and the spectrometer, and assures no spectra are dropped in the acquisition process. This opens to new applications such as flicker in lighting, fluorescence decay, and kinetics experiments (for rapid reaction rates).