Prohibit excessive temperatureWhen stage lighting is working normally, it is best that the ambient temperature does not exceed 40 degrees Celsius. If the ambien...

Laser light is a laser product that can automatically produce various laser beams, laser patterns, and laser text along with the rhythm of music. It is a new pr...

(1) Organize all the staff participating in the project to clarify the importance of the project, construction difficulties, especially the construction period ...