Texas Transportation Code. Section 547.305, restrictions on use of lights which states:
a. a motor vehicle lamp or illuminating device, other than a headlamp, stop lamp, auxiliary lamp, turn signal lamp,
or emergency vehicle or school bus warning lamp, that projects a beam with an intensity brighter than 300
candlepower shall be directed so that no part of the high-intensity portion of the beam strikes the roadway at a
distance of more than 75 feet from the vehicle.
b. except as expressly authorized by law, a person may not operate or move equipment or a vehicle,
other than a police vehicle with a lamp or device that displays a red light visible from directly in
front of the center of the equipment or vehicle.
c. a person may not operate a motor vehicle equipped with a red, white, or blue beacon, flashing,
or alternating lights unless the equipment is:
1. used as specifically authorized by this chapter; or
2. a running lamp, tail lamp, backup lamp, or turn signal lamp that is used as authorized by law.