... of heat dissipation4.quick start, no need ballast and starter.5.No flashing,,no noise,good for eyes ... /ctn)410*360*280(50pcs/ctn) N.W/G.W (KG)5/6kgs(50pcs/ctn)8/9kgs( ... focus on high power LED products’ R&D, manufacture, marketing, sale and after-sales service. Our main products are ... light, LED pannel light etc. we got strong R&D and production abilities in producing "energy saving, environment friendly, ...