... Number: M156HS3BBMaterial: Monocrystalline SiliconSize: 156*156mmMax. Power: 4wItem: 156mm Mono solar cellsDimensions: 156mmX156mm±0.5mmDiameter: 200mm±0.5mmThickness: 200um ... research, development, manufacture and export Poly-crystalline and mono-crystalline solar cells & modules. Cell efficiency from 17.8% to 20. ... rec, canadian soalr ,ldk,sungrow,hanwha,risen,eging pv ,ETC.3. Q : What about your ...