Our products originate in Liaoning, China,, the application family, the solar panel type is monocrystalline silicon, the battery type is lead acid, the controller type is MPPT and PW, the installation type is ground installation, the load power is 3KW, 5kW , output voltage is 220/380V, output frequency is 50/60HZ, with CE certificate, type is PERC, half cell, standard solar panel, panel size is 1996 x 992 x 50 mm, unit size is 210mmx210mm, panel efficiency is 20, Solar cell 156*156mm, power 0-5WLife expectancy is more than 25 years.