That is a Hannoverian light dragoon by New Hope Design. It's from the Men at Arms series, based on the Osprey series of the same name.
I think it's kitted as a trooper of the 9th Queen's Light Dragoons in 1792, because that matches the illustration on which the figure is based, plate B/2 in MAA 206, "The Hannoverian Army of the Napoleonic Wars". However, because the uniform details are so similar, it can be painted as a trooper of the regiment in the uniform at the time it was raised, 1763, or also, as a trooper of the Prince of Wales' Light Dragoons of the same periods.
When raised, they wore red coats with blue facings, which were later changed for blue coats with red facings. The Queen's LD had yellow lace, gold for officers, while the Prince of Wales' LD had white lace, silver for officers. They wore a "jacked cap", similar to the caps worn by British light dragoon regiments raised at the same time. It's basically a jockey cap, with a front flap replacing the peak, and a crest with plume. The flap carries the running horse of the House of Hannover.
The Queen's LD carried as their color a French standard captured in the Seven Years War from the Rougrave Cuirassiers by Freytag's Jaegers. It consisted of a light red field with a gold, rayed sun, with a banner across the upper part of the sun with the French royal motto, "Nec Pluribus Impar".
The regiments were also known by their German names, "Leichte-Dragoner 'Koenigin' " and "Leichte-Dragoner 'Prinz von Wallis' " (Wallis is an old German name for Wales) or Leichte-Dragoner 'Kronprinz' " (the Prince of Wales being the British Crown Prince).
Hope that helps, prost!
Brad