The COMBINED side marker and downlight unit should be fitted underneath, but up to the edge of the body of the vehicle or trailer. The vertical angle of the downlight can be adjusted to display the footprint relative to the height of fitment from the ground.

If  the lamps  are used in conjunction with the JBDL controller: the side markers will flash in unison with the indicators (as per the November 2017 Regulations); the downlight footprint will flash in unison with the vehicle indicators; there is a ‘slow speed’ function where the downlights will automatically illuminate on and off in stop/start traffic up to and including 15 kph offering a ‘keep clear’ area to vulnerable road users.