KF-DH (Bottom Box) KF.DH(square)BOTTOM BOX;86X86mm(Lengthxwidth);Light and Dark Box;with good appearance;easy to be installed. KF.DH(long)Bottom Box;115x72mm(lengthxwidth);with good apearance;easy to be installed. KF.KH(long) Bottom Box KF.KH(Squre) Bottom Box