... / master-slave / Voice Light Source: Using high-power 3W/1W LED, factory default CREE LED (optional, lumens, K2 ... angle of 8 °/15 °/25 °/ 50 °optional. LED static constant current drive mode, constant current, high ... auditorium, T-sets, stage, concerts, and concert venues of performance and choreography background light staining of the large ... Material: Aluminum + Plastic Projection Distance: 50M led par