The SIMBULB CLASSIC LED fulfills the consumers’ demand on traditional light bulbs. It features a minimalist design and yet only one tenth of the energy is consumed. It employs a simple mechanism by pulling up a 2D metal plate to a 3D spiral substrate. Two hemisphere substrates are combined into a novel and beautiful sphere light source. The materials used are cheap and the assembly process is simple and mature. The product attributes its long lifespan, stability and safety to the innovative mechanical structure. Dimmable function is included to allow it to be used in different applications. Amber tinted glass retains the esthetics of decorative vintage incandescent bulbs.