... price , super quality , excellent service,stable performance solar panel specifications 1. Monocrystalline silicon solar panel conversion efficiency is about 18%-23%;Polycrystalline ... of high light transmittance, aging,-resistant EVA, high performance crystalline silicon solar battery and weather-resistant TPT, which together gift the panel ... .Weight:19kg 12.cells arrangeing:60(6*10) 120w solar module