The T-50 light infantry tank was built by the Soviet Union at the beginning of World War II. The design for this vehicle had some advanced features, but was complicated and expensive, and only a short production run of 69 tanks was completed. Furthermore, even before it was ready for mass-production wartime experience invalidated the underlying concept of light tanks.
Nice small weapon. Operational range of this tank was up to 220km and can run at the speed around 60km\h. Produced in the year 1941 for Russians in WW2.
I don't think that this is a small, but you can say this as a light weapon not due to its size but due to its feature. Rather than this, T-50 tank has a nice range in this light tank section.