Speed: 1000 RPM 4 solar lithium battery 2 sets of painted wire 1 section ironing boron strong magnet Will this group have this function to automatically reverse the solar cell receiving coil, when running, the solar cell actively works, always the light in that position is sufficient, the current is large very strong, attention, assembly of the fixture, hand-made. The rotating shaft part of this top can not be forced to be a clear collision, which may cause equipment failure. Because it is handmade, the fixed part is made of glass glue and tape, which is easy to be damaged. In most cases, this means that you need to manually add an external rotation, and rest can be done with light. Colour:black Material:Acrylic + copper + metal Size:130*76*75mm Package Contents: 1* motors Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.