For the purposes of the first paragraph, the technical standards and the method for the installation of a flashing green light are as follows:(1) the light may not be a rotating light or emulate the appearance of a rotating light;
(2) if only one light is visible from the front, the rear or one of the 2 sides of the tow truck, its maximum size, excluding the attachment system, must be 260 mm wide, 76 mm high and 185 mm deep;
(3) if 2 or 3 lights are visible from the front, the rear or one of the 2 sides of the tow truck, the maximum size of each light, excluding the attachment system, must be 158 mm wide, 61 mm high and 185 mm deep;
(4) the total luminous area of the lenses of any flashing green light installed so as to be visible from the front, the rear or one of the 2 sides of the tow truck must, in each case, be less than that of the flashing or rotating amber lights installed on the tow truck and that are visible, as applicable, from the front, the rear or one of the 2 sides of the tow truck.