Parade light


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guitarlos
Posts: 146
Joined: Thu Sep 17, 2009 5:45 am
Location: Speedway IN
Motorcycle: 1980 GL1100

Parade light

Postby guitarlos » Sun Nov 15, 2009 7:31 pm



I have a switch that modulates the headlight off and on repeatedly only in the high position. Is it legal to ride with this on during the day time? Is this a State by State issue? Anyone in the know?

I feel a little safer with it on as anything that can grab some awareness of me is a good thing in my book. I also tied a foxtail to the rear Vetter saddle trunk to sway to grab attention as well from behind me during the daylight hours.



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WingAdmin
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Location: Strongsville, OH
Motorcycle: 2000 GL1500 SE
1982 GL1100A Aspencade (sold)
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Re: Parade light

Postby WingAdmin » Sun Nov 15, 2009 7:39 pm

They are permitted by federal law, and the federal law specifically says that it can not be preempted by state or local laws or ordinances. That said, I've heard stories of people who got tickets for them because the officer who pulled them over had never heard of such a thing. That's why I carry around a copy of the excerpt that permits them - printed on one side with the US regulation, and on the other side with the Canadian regulation:


Federal Motor Vehicle Standards,
CFR Part 571.108 S7.9.4

Federal Motor Vehicle Standards, CFR Part 571.108 S7.9.4

S7.9.4 Motorcycle headlamp modulation system.
S7.9.4.1 A headlamp on a motorcycle may be wired to modulate either the upper beam or the lower beam from its maximum intensity to a lesser intensity, provided that:
(a) The rate of modulation shall be 240 40 cycles per minute.
(b) The headlamp shall be operated at maximum power for 50 to 70 percent of each cycle.
(c) The lowest intensity at any test point shall be not less than 17 percent of the maximum intensity measured at the same point.
(d) The modulator switch shall be wired in the power lead of the beam filament being modulated and not in the ground side of the circuit.
(e) Means shall be provided so that both the lower beam and upper beam remain operable in the event of a modulator failure.
(f) The system shall include a sensor mounted with the axis of its sensing element perpendicular to a horizontal plane. Headlamp modulation shall cease whenever the level of light emitted by a tungsten filament light operating at 3000 deg. Kelvin is either less than 270 lux (25 foot-candles) of direct light for upward pointing sensors or less than 60 lux (5.6 foot-candles) of reflected light for downward pointing sensors. The light is measured by a silicon cell type light meter that is located at the sensor and pointing in the same direction as the sensor. A Kodak Gray Card (Kodak R-27) is placed at ground level to simulate the road surface in testing downward pointing sensors.
(g) When tested in accordance with the test profile shown in Figure 9, the voltage drop across the modulator when the lamp is on at all test conditions for 12 volt systems and 6 volt systems shall not be greater than .45 volt. The modulator shall meet all the provisions of the standard after completion of the test profile shown in Figure 9.
(h) Means shall be provided so that both the lower and upper beam function at design voltage when the headlamp control switch is in either the lower or upper beam position when the modulator is off.
S7.9.4.2(a) Each motorcycle headlamp modulator not intended as original equipment, or its container, shall be labeled with the maximum wattage, and the minimum wattage appropriate for its use. Additionally, each such modulator shall comply with S7.9.4.1 (a) through (g) when connected to a headlamp of the maximum rated power and a headlamp of the minimum rated power, and shall provide means so that the modulated beam functions at design voltage when the modulator is off.
(b) Instructions, with a diagram, shall be provided for mounting the light sensor including location on the motorcycle, distance above the road surface, and and orientation with respect to the light.


Preemption Statute
Cite: 49USC30103

Title 49--Transportation
Subtitle VI--Motor Vehicle and Driver Programs
Part A--General
Chapter 301--Motor Vehicle Safety
Subchapter I--General

Sec. 30103. Relationship to other laws
(b) Preemption.--(1) When a motor vehicle safety standard is in effect under this chapter, a State or a political subdivision of a State may prescribe or continue in effect a standard applicable to the same aspect of performance of a motor vehicle or motor vehicle equipment only if the standard is identical to the standard prescribed under this chapter.



Technical Standards Document No. 108, Revision 4 — Lamps, Reflective Devices, and Associated Equipment
Section S7.9 Motorcycles
Effective Date: June 9, 2007
Mandatory Compliance Date: December 9, 2007

S7.9.4 Motorcycle headlamp modulation system

S7.9.4.1 A headlamp on a motorcycle may be wired to modulate either the upper beam or the lower beam from its maximum intensity to a lesser intensity, provided that:

(a) The rate of modulation shall be 240 ± 40 cycles per minute.

(b) The headlamp shall be operated at maximum power for 50 to 70 percent of each cycle.

(c) The lowest intensity at any test point shall be not less than 17 percent of the maximum intensity measured at the same point.

(d) The modulator switch shall be wired in the power lead of the beam filament being modulated and not in the ground side of the circuit.

(e) Means shall be provided so that both the lower beam and upper beam remain operable in the event of a modulator failure.

(f) The system shall include a sensor mounted with the axis of its sensing element perpendicular to a horizontal plane. Headlamp modulation shall cease whenever the level of light emitted by a tungsten filament light operating at 3000 degrees Kelvin is either less than 270 lux (25 foot-candles) of direct light for upward pointing sensors or less than 60 lux (5.6 foot-candles) of reflected light for downward pointing sensors. The light is measured by a silicon cell type light meter that is located at the sensor and pointing in the same direction as the sensor. A Kodak Gray Card (Kodak R-27) is placed at ground level to simulate the road surface in testing downward pointing sensors.

(g) When tested in accordance with the test profile shown in Figure 9, the voltage drop across the modulator when the lamp is on at all test conditions for 12 volt systems and 6 volt systems shall not be greater than 0.45 volt. The modulator shall meet all the provisions of this TSD the standard after completion of the test profile shown in Figure 9.

(h) Means shall be provided so that both the lower and upper beam function at design voltage when the headlamp control switch is in either the lower or upper beam position when the modulator is off.

For more information, contact:
Motor Vehicle Standards and Research Branch
Road Safety and Motor Vehicle Regulation Directorate
TRANSPORT CANADA
Ottawa, Ontario
K1A 0N5

User avatar
guitarlos
Posts: 146
Joined: Thu Sep 17, 2009 5:45 am
Location: Speedway IN
Motorcycle: 1980 GL1100

Re: Parade light

Postby guitarlos » Mon Nov 16, 2009 7:06 am

Thanks Wing Admin, I printed this and am going to carry it in the saddle bags, just in case! ;)


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