... ,municipal engineering, shopping malls etcSurface mounted T5 Grille lamp 3 years warranty CE,ROHS,ISO certification High quality electronic ballast T5 ... ,ROHS,CCC certification0.99Power factor, THD<10%,EMC Passed,3 years warranty.Tube10000Hours and 30000Hours for your choice.Installation ways:Recessed ... *54W1195*595*552121*62*137.258.45 2*28W Grid light/ T5 grille lamp(3 years warranty,CE)