Features 1、Efficient Protection Power: This PV DC surge protector uses advanced technology to precisely protect your solar panels from faults such as inrush currents, overvoltages and lightning strikes in a short period of time. 2、Wide Application: The protector is suitable for all PV DC systems and can provide all round protection for your solar panels. 3、Easy To Install: This PV tributary surge protector is rail mounted and is very easy to install without professional help. 4、Excellent Plastic Housing: This PV tributary surge protector is made of excellent plastic, which is high temperature resistant, flame retardant, with a long and durable service life. 5、Visual Window: This PV DC surge protector is designed with a visual window, you can judge the protector condition by the realistic color of the window. Specification Item Type: Photovoltaic DC Surge Protector Material: Plastic Size: Approx. 9 x 7 x 4cm/3.5 x 2.8 x 1.6in Package List 1 x Photovoltaic DC Surge Protector