1.[ MATERIALS - The base is made of pressed plastic shell with strong porcelain tube filled with pure quartz sand, ensuring durability and excellent performance. 2.[COMPACT AND CONVENIENT - The compact size of the and shell make it convenient to use while also providing a safe and beautiful appearance for your photovoltaic power station. 3.[MULTI PROTECTION - Provides short circuit and open circuit protection in photovoltaic power station and inverter rectifier system. Also offers fast breaking protection for surge current and short circuit fault voltage of photovoltaic power generation system. 4.[IDEAL REPLACEMENT - Professionally manufactured, these are perfect replacements for old and damaged parts, allowing you to maintain the optimal performance of your solar PV system. 5.[EASY TO USE - Simply insert the into the holder and you're ready to go, making installation quick and hassle-.