... 5 pcs 4.Bridgelux,cree,epstar chip High bay light features:1. The products using high-quality aluminum production, fine workmanship, the ... , heat dissipation superior performance.2. Products choose the imported high brightness LED light (using the American purui lamp bead chip ... , the built-in constant-current driving power, to ensure high efficiency and energy saving, long stable job. Lumens degrees: ...