Brushless DC motors are available in many different voltage configurations because electric equipment does not operate from a single standardized power system. Compact battery-powered devices may require a low-voltage motor, while larger electric systems can use higher voltage to deliver the required power with lower current. Common BLDC motor configurations include 12V, 24V, 36V, 48V, 72V, and 96V, providing different options for system designers. The choice of voltage should begin with the available power architecture rather than with the motor alone. A battery, power supply, controller, wiring, and motor all need to work within compatible electrical ranges. Increasing voltage can reduce the current required for a given power output, but it also requires the rest of the electrical system to be designed for that voltage. Similarly, selecting a lower-voltage motor does not automatically make a system more efficient if the resulting current becomes unnecessarily high. You can learn more: https://www.brushless.com/brushless-dc-motors