Simple pendulum from the Danish manufacturer Nordisk Solar. A very reduced design that is based on the shape of the reflectors of classic photo flashes. Hence the name "Flash". I have official proof of authenticity such as vintage catalogs, designer records, or other literature sources and take full responsibility for any authenticity issues arising from misattribution, Up to 250V (Europe/UK Standard).The wiring of this item may be original and might need replacement, if not specified otherwise.