The high performance USHIO HPL+ lamp has been designed to be very powerful. Its ultra-compact filament geometry improves the optical efficiency of ETC Source Four™ fixtures to produce up to 20% more fixture lumens. That's up to 20% more light from the same fixture as compared to the old lamp design.
The Source Four's precise optics demand precisely engineered lamps. USHIO has responded to the Source Four's need for a reduced geometry filament, and has done so with quality manufacturing standards. Performance you can measure, quality you can count on, variety of lamp types, and innovative design for your theatrical needs.