When sourcing Sky Tracker Lights (also known as searchlights), the most critical factor is the Light Source Type. You should choose between Xenon lamps, which offer traditional high-intensity beams, and High-Power LED modules, which are more energy-efficient and have a longer lifespan. Ensure the Luminous Flux is sufficient for your needs; for large-scale visibility, a minimum of 50,000 to 150,000 lumens is recommended. Additionally, verify the Beam Angle (typically adjustable between 1° and 15°) and the Rotation Range, ensuring it supports 360° continuous horizontal rotation and at least 90° vertical tilt for maximum sky coverage.