The phrase "voltage range" refers to the span or limits within which an electrical voltage can vary. It represents the highest and lowest levels of voltage that a particular device or circuit can handle without causing damage or malfunction.
A while back I ran a few reports and also put together a report of the full voltage range the sensors were posting during the scan. (mechanics.stackexchange.com)
Having a robust, wide voltage range, high power input is an important feature when using alternative power sources. (blog.laptop.org)