1,Adhesive sealed. 2,water-proof ,black shell 3,power factor: >0.98 used for billboardoutdoorenergy-saving 4,ballast T8 FLOURESCENT BALLASTwater-proof ,black shellused for billboard outdoor energy-saving, environment protection ballast with connected-wire ModelYZ236DFAPower rising6minSize278x30x28mmInput voltage95-275VMogul attachable styleavailableOperation frequency50Hz- ...