Higher power is not always better. Medium‑power lasers work for short‑range block atmosphere; high‑power units for long‑range river/mountain projection. Make selection based on site survey, projection distance, ambient light and show content. Support both daily ambient mode and holiday special‑effect mode.
Evaluate airspace and avoid civil‑aviation flight paths, complete local filing procedures. Follow laser‑show safety standards, equip hardware emergency stop, keep beam path away from visitor zones with physical barriers. Safety interlock shall cut laser output automatically upon fault to avoid eye hazard.
Adopt laser units with IP65 or higher weather‑proof rating with rain‑proof, moisture‑proof and lightning‑protection setup. Fog improves beam visibility yet degrades image sharpness. Stop performance under heavy rain to protect optics. Connect weather signal for auto‑standby/shutdown, and keep lens maintenance regularly.
Ancient buildings are cultural‑heritage assets. Control laser power and illumination duration to prevent heat‑related facade damage. Equipment shall be concealed without damaging original structures. Show content shall match local historical style. Complete heritage‑protection assessment before confirming power, projection angle and show runtime.