Mono-crystalline and poly-crystalline are all available with a full range of power from 5-250watt. We designed and manufactured different power as per customer's requirements 180W spec is as follow: Monocrystalline solar panel: Type: JCSM-180D Maximum power (Wp) : 180wp Maximum power voltage (V) : 36.00 Maximum power current (A) : 5.00 Open circuit voltage (V) : 44.80 Short circuit current (A) : 5.20 Number of cells (Pcs) : 72 Size of module (mm) : 1590x800x50 or 1590x800x35 Maximum system voltage (V) : 1000 Tolerance Wattage (e. g. +/-5%) : +/-5% Frame (Material, Corners, etc. ) :Anodized Aluminum Certificate:CE,TUV. Please contact me ASAP if you are interested.