Safety. 

Low-voltage bistro lights operate at 12 volts or 24 volts, which is significantly safer than the 120-volt power used for high-voltage lights. This is because the lower voltage reduces the risk of electrical shock or fire, making them a safer option for outdoor lighting. 

Cost. 

Low-voltage bistro lights are generally less expensive than high-voltage ones. This is because low-voltage systems require less material and are easier to install, which can result in cost savings for homeowners or business owners. 

Energy Efficiency. 

Low-voltage bistro lights are more energy-efficient than high-voltage ones. This is because low-voltage systems require less power to operate, which can result in lower energy bills and less strain on the electrical grid. 

Durability. 

Low-voltage bistro lights are typically more durable than high-voltage ones. This is because low-voltage systems are designed to withstand the elements and are less likely to experience issues like voltage spikes or power surges.