The Dreadbox Nostalgia Black Light is a three-stage hybrid delay with built-in LFO, and part of the Chromatic Modules series. Two inputs are optimized for modular or guitar levels. The delay time can be set between 30 milliseconds and one second, which varies between shimmering science fiction sounds and charismatic retro sounds. The built-in LFO has triangle and square waveforms and, thanks to the two parallel outputs, can be used not only within the Nostalgia module.