OSRAM SYLVANIA BoxLED Plus DS BX12BA-W4F - Manual (Page 5)

2.7a Insert BoxLED Plus DS modules into
the required number of “a” track pieces –
referring to step 2.6 for layout options
2.7b Insert one end of the module into
the track and push down on the opposite
end until it clicks into place
2.8 Loop any excess wire around the
track in-between the modules and tie
wrap it into place