In the operation test
of a lamp incorporating
other lamp, only in
such case that the
incorporated lamp is
licence plate lamp, tail
lamp, parking lamp,
clearance lamp or side
rnarker lamp, the
incorporated lanp is
previously put into
operation until the
temperature is almo8t
stabilized and then
the lamp to be test€d
is put into operation
(for turn signal lamp,
into flickering).