Tow trucks come with more lights than most other vehicles. Those colors are not a matter of personal preference but in response to the law where they decide what color, brightness, and number of those lights you should install. It is important to find out more about the lights you are allowed to install.
A vehicle is roadworthy when it has headlights, taillights, brake lights, front and rear turn signals, side markers to show the overall length, clearance lights to show the overall width, and backup lights that indicate when the vehicle is in reverse. These lights do not necessarily have to be separate. Headlights, for instance, can also be the front clearance and side marker lights. If the vehicle is larger than average size, you have some additional light requirements. Those long vehicles need to have side marker lights and reflectors about half their length. For those that are wider than the average vehicle, you need to get identification markers, which happen to be a set of three lights mounted on the top front and top rear of the vehicle. It helps other drivers determine its dimensions in low light situations.
When it comes to color; you have to be careful. You need to have headlights and backup lights in white. Any other rear-facing light had to be red. You need to have marker and clearance lights in yellow. Rear turn signals can be red or yellow. There may be some modifications as per each state.
When it comes to brightness, there are also some specific requirements. The lights have to be visible at a safe distance. Each state imposes certain minimums you need to respect. It is wise to learn more about those standards where you are before any modifications. Any additional lights need to conform to those regulations, and not interfere with the settings of the original lights.
Tow trucks present some special needs in their lights. They need to adhere to the standard settings, and also have some extra additions. There are the oscillating, rotating or strobe lights in specific colors. The strobe light, for example, should have two colors, one turned on when the truck is stationary, hooking up to a car, and the other comes on when towing the car. All traffic behind you need to see the rear lights clearly. If the car being towed blocks those lights, you are expected to place those lights on its rear. Failure to do so and an accident occurs means you are responsible for it.
When you need to get those lights, you can do a quick online search for tow truck lights, wireless trailer lights, or wireless towing light bars. You can check the Tow Mart website, for their reputation and history in this market. You can learn more about them here. They have some amazing offers, so check it out!