The candle holder does not fall in the chassis as it is fixed to one of two freely rotatable rings perpendicular to each other, which is a mechanism similar to that of a gyroscope which can always keep the direction of the axis of spin unchanged, so that the light comes out only in a single direction.
蝋燭立ては筐体内で倒れないように常に自立可能なジャイロスコープと同様の仕組みをもつ自在に回転する留め金で固定されており、光が単一方向にのみ照射する。