... IP20, CE & ROHS ballast with auto energy saving Light source: PHILIPS MSD 1200SA,working hour: 750 hours, lamp houlder ... color diffusion selectable, auto function, sound active functionColor wheel outside dimension: 41.8mm CTC:0~100% linear cooling system ... flow effects adjustable, auto function, sound active functiongobo wheel outside dimension: 37.3mmgobo effective dimension: 31.5mm prism/ effective ...