Interpretation ID: 2520y

Mr. Peter Brown
President, KC HiLites, Inc.
Avenida de Luces
Williams, AZ 86046

Dear Mr. Brown:

This is in reply to your letter of April 25, l990, asking for our "comments and approval" regarding an automotive lighting product that your company intends to market. The product is intended for use in a four headlamp systems with lens designations of "L", "LF" or "HB4" on the outboard lamps, and "U", "UF" or "HB3" on the inboard lamps. In normal operation, the lower beam is extinguished when the upper beam is activated; your device would ensure that the lower beam would remain activated when the upper beam is used. You view this as permissible under S5.5.8 of Motor Vehicle Safety Standard No. l08.

Initially, let me note that we have no authority to "approve" any device or invention for use on motor vehicles. We advise whether such products are permissible under the Federal motor vehicle safety standards, but this advice must not be represented in advertising as Federal approval of the device or invention.

Section S5.5.8 of Standard No. l08 states in pertinent part that "On a motor vehicle equipped with a headlighting system designed to conform to the photometric requirements of Figure 15, the lamps marked "L" or "LF" may be wired to remain permanently activated when the lamps marked "U" or "UF" are activated. Standard No. 108 further specifies that headlamps designed to conform to Figure l5 are the four-lamp sealed beam system Type F (S7.3.7(b)), and a four-headlamp integral beam system (S7.4(a)(1)). In addition, certain types of replaceable bulb headlamp systems may also be designed to conform to Figure l5 photometrics, as shown in recently-adopted Figure 26 (copy enclosed). Replaceable bulb headlamps are also required to have the HB Type number on the lens, as well as the "U" and "L" markings. Therefore, installation of your device on the headlighting systems mentioned above would be permitted by Standard No. l08, and you need not be limited to systems that use HB3 and HB4 light sources.

With respect to the copy on the material you submitted for review, it would be more accurate to reword the marking references to state "'LF', 'L', or 'L' and 'HB4' on the upper. . . and the corresponding designation 'UF', 'U', or 'U' and 'HB3' on the lower. . . ."

We also note your remark "Quad-Beam gives you this extra margin of lighting safety that the factory left out." There is no basis in fact for this statement. Some drivers prefer more foreground light, but there is no indication that the addition of the lower beam when the upper beam is in use has a positive effect upon lighting safety.

As you requested, we are returning your samples.

Sincerely,

Paul Jackson Rice Chief Counsel Enclosures /ref:l08 d:7/2/90