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Wessels concurs that glare-free illumination is a large benefit over traditional light towers. "Unlike traditional lights, these units don't cast shadows," he says. "You're not blinded when you look directly at the light, nor is there a reflection off the ground or equipment. These lights make nighttime work not only safer for the workers but also for drivers."

Balloon lights are also very quiet — or as quiet as the source powering it. This has led to its popularity with special events, but also helps during nighttime activities where noise could be a problem.

Another benefit is their portability. Balloon lights can be transported in their storage cases in the bed of a pickup truck or car trunk. There are no outriggers to set, masts to crank or lights to position. Balloon lights can also move with the job when they're mounted to a piece of equipment or on a wheeled stand.

What are the disadvantages? Traditional light towers will give a wider area of light coverage, and you can tilt them to illuminate other areas. And because of a balloon light's portability, you must make sure the unit is secured and properly anchored for safety. And watch out for those overhead power lines.

Traditional light towers, which are also more expensive and not as mobile, still have their place, says James. "It really depends on the application," he says. "Both types have their markets — balloon lights are not going to replace traditional light towers. They just offer another solution."