... Picture No.2 Showed, Wrest hanger into top cap, wrest lock screw very tightly As Picture No.3 Showed, Hang the lamp ... on the installation site,and screw down the non skid lock .As Picture No.4. 5 Showed, Hang chaining ... the lamp follow up the installation procedure, make sure the screw has been wrested very tightly, the wires have been connected ...