Fiberglass base:This kind of G4 bulb based fiberglass PCB has high stability in isolation performance, ultra flatness without any pits. Also, it well-performed on heat-isolation, environmental protection and fire-retardant. Pin-out:After antioxidant treatment it will well protect the pin-out interface and make it won’t be easy rusted. High temperature tin with lead free:Fast speed in heat dissipation and won’t be easy to take pseudo soldering. Good in gloss and no harness to environment. High-quality SMD chips take wide-angle of lightings. The CT has great stability which won’t drift along with the temperature increasing. Working Temperature:Between-30℃~+50℃,Relative humidity less than 98%. Storage Temperature:Between-30℃~+60℃,Relative humidity less than 85% Electric shock rating:Ⅲ