1. Proved by National Commodity Inspection Bureau with CNS certification no.9576 and C4370.
2. Pressed with 20000V(R.M.S),60Hz in 1 second to prove no penetrating and breakage.
3. Double-sized extrusion molding, outer layer with sunshine-proof to resist aging, inside to resist high-voltage for ensuring long-time use.
4. Product insurance available for safe use .