Because the power was probably not with me ...

That it is not a licensed version was clear to me from the outset. This would then also the cost certainly one or the other more.
The processing was also good in order and the sound and light effects. However, the light has passed after about a week. This is in my view not in order, because that's what makes a "lightsaber" yes from.
Even though it was priced to buy relatively cheap, it may not be as fast a fault occurs.

But as the saying goes: Those who buy cheap buy twice. The second purchase, however no longer be this sword.