Buyers must choose between Solar-powered, Low-voltage (12V/24V), and Line-voltage (120V/230V) systems. Solar lights are ideal for cost-effective installation and eco-friendly projects, but require at least 6-8 hours of direct sunlight. Low-voltage systems are the industry standard for professional landscaping due to their safety, ease of installation, and consistent brightness, whereas line-voltage is reserved for high-intensity security lighting and requires certified electricians and conduit piping.