polymer composites and snap-in technology,which made them capable of small size,simple installation,low cost(the market price is less than 0.15USD) and superior performance.Moreover,Voir® follows up the market development trend all along and cooperate with the industry leading companies to provide the best matched solution and products.Details about Voir® protective vents applied to COB,please consult Voir Science&Technology.Tele:400-6136683.