... reflection design,high light output reaching 95%,V-shape grid,paracurve arc reflector,T8/T5 luminous tube optional ApellationModelLampVoltsPower( ... foam rubber seal fixed, to avoid voids, dust, moistureScientific structure design, a surface mounted type A, B-type surface ... condensation of water or corrosive gases into theClosed ceiling structure, does not affect the original indoor air distribution. ...