Product size: 140 x 90.5 x 33mm approx.Installation hole: 133.5 x 70mm approx.Current: 10A maximum System voltage: 12V / 24V Protection: Auto Recovery + Lightning The product has The solar power indicator, battery.Automatic control to protect the product from over charge, over discharge, electronic short circuit, overload protection, only protection against reverse connection; LED light indicates the current state of the battery.Note:Fixing the regulator has to be firm, you need ventilation to ensure greater flow models.Take care of the connection of positive and negative to not invest.1 x controller solar battery 1 x Manual in English In original package