The LH0279 Vossloh Schwabe 108878 is vertical lamp support for 2G11 base Long Twin Tube, PLL or Biax LED or fluorescent lamps. It is designed to fit into a 5.5mm hole. The LH0279 allows the lamp to be mounted vertically instead of horizontally. 5.2mm lamp axis. This support is similar or equal to the American DeRosa D3958, DM Technology 59013 and Vossloh Schwabe 108878
Link to Long Twin Tube lamps that fit this socket