Adding lights to a car or trailer that you're towing is necessary for safety, and choosing the right type can take more than a bit of consideration. One style you should definitely look at is the LED tow light bar, which has a series of LED bulbs, often in multiple colors depending on the configuration. These bars can really help in terms of visibility and grabbing the attention of other drivers. Plus, they offer a safety feature that dingle lights can't beat.
Larger Size and More Visibility
Light bars offer more lights, plain and simple. That means the lights are easier to see and have less of a chance of getting swallowed up visually by surrounding lights from other cars and buildings along the side of the road. On a dark night when there's a lot of rain, for example, you want as much visibility as possible so that drivers around you don't come too close to the car or trailer you're towing. A large LED light bar is perfect for this.
Unexpected Patterns and Grabbing Attention
Some light bars -- not all, but some -- allow you to use patterns to attract drivers' attention. Instead of having a red light that goes on, for example, you can have a red bulb next to a white reverse bulb next to a long string of other red bulbs that can flash on and off in different patterns. The unexpected nature of that sight can be more of an attention-getter without being too distracting. If you're worried about drivers not seeing your lights as they careen down the highway, a light bar will help soothe those worries.
Redundancy and Safety
One more advantage to having a tow light bar instead of individual lights is that if one LED bulb is defective or burns out, you've still got many more bulbs there to alert drivers. When you have one light and that light goes out or doesn't work properly, you have no alternatives until you get another light. But with a bar, you have backup, and that enables you to keep working and towing, rather than forcing you to take an immediate detour to an auto parts or home improvement store.
Take a look at the offerings from different auto accessories shops, like Fouts Products. LED light bars themselves come in different styles with different spacing between the lights, and you should be able to find one that really makes what you're towing stand out.