Channels on the front of the fixture accept barn doors and other accessories including a condenser back-end module that permits use of all projection attachments and lenses from Series 400 lights.Available for separate purchase, the DLH1200D's required dedicated ballast allows use of the fixture with 90-264 VAC mains power, DMX control and 50-100% dimming. Both the head and the optional ballast offer rainproof construction.Attributes and BenefitsHigh light outputWide focus rangeHighly accurate color renderingRainproof - high IP ratingSwing away side lampingOn/Off on both head and optional ballastHigh Efficiency Convection CoolingFull air intake on the bottom of the lightExtra air intakes between the inner and outer housingsAir gap around the front lensLow front air intake provides airflow between the two lenses (important in flood position)High Range of Intensity Change While Maintaining ColorCalculated boosting of output without noticeably affecting lifetime of the lamp while maintaining color stabilityContinuous dimming only to the point beyond which color change would occur (with optional ballast)Low UVExtremely low UV values, approx. 1/20 the value shown by other lights