I'm sorry, but as already said, I do not know what the term V.3 corresponds to, what was asking for photos? now if 7.2 volts on Leds outputs, yes something burned out, what surprises me? but possible? after compatibility level, I can not say? no longer using this kind of material. The only reference found would correspond to a Taigen with sound module? afterwards do not know more

https://www.rctank.de/Panther-G-Platine ... ule-de-son
Pictures V.3 Taigen,no Heng Long