Source 4WRD Color II
Europe - ETC has sold millions of Source Four incandescent fixtures over the past 30 years. In many cases, these fixtures are still running strong and revered as the workhorses of their school auditoriums, houses of worship, and theatres. When it comes to upgrading from incandescent to LED, throwing out fixtures that are still in good working condition can, understandably, be a difficult decision.
Source 4WRD Color II makes this decision easy. It enables the upcycling of any existing ETC incandescent Source Four fixture to a RGBA LED fixture in minutes and use only a quarter of the power. This non-destructive retrofit maintains the majority of the Source Four incandescent fixture and reduces overall waste.
Compared to the previous generation of Source 4WRD Color, the addition of the new snap in reflector and the significantly brighter red emitter provide a notable intensity increase of 36% in warm whites and dramatically improves colour rendering performance, says RTC. Rich, saturated colours, pastel hues, and cool toning blues loved by theatre designers worldwide also see ‘remarkable improvements’.
This second generation of Source 4WRD Color is not only a retrofit, but also can be a full spot profile, a full PAR, or full PARNel fixture. With 12 built-in colour presets and five built-in sequences, stand-alone operation is intuitive.

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