Designer: Vladimir Chikolev
Made in: Moscow, Russian Empire (now Russia)
Dimensions: 200 × 430 × 160 mm
Weight: 8 kg
Tags: russiamakes, polytech, рдс, россияделаетсама, политех
Desktop electric lamp developed by V.N. Chikolev. It is an electric arc lamp with a differential controller that solves the problem of stability of the electric arc. The controller ensures the movement of carbons depending on the amount of the current and the voltage.