Source Four - the ellipsoidal spotlight that changed the lighting industry. Smaller, lighter and much brighter than conventional 1000W ellipsoidals, Source Four sets the standard.

Source Four's clean white beam means excellent imaging, for crisp pattern projection and smooth washes. Source Four's interchangeable lens tubes fit any application, and its rotating barrel puts your cuts just where you need them.

Source Four's cool beam technology means gobos and shutters last longer and performers are more comfortable on stage.

Source Four is economical. Easy focusing and tool-free lamp adjustment save on valuable load in time, and energy and air conditioning costs are cut by over 40%.

And ETC's patented Dimmer Doubling technology can reduce dimmer and wiring costs by up to 50%. Source Four - the industry standard ellipsoidal from ETC.


  • Up to 40% more light than most 1000W ellipsoidals
  • Consumes less than half the energy of 1000W ellipsoidals
  • Interchangeable lens tubes for 5, 10, 19, 26, 36, and 50 field angles
  • Super-efficient HPL compact filament lamp
  • Faceted dichroic reflector removes 90 percent of heat from the beam
  • Cosine distribution
  • Rotating barrel a standard Tool-free lamp adjustment
  • Rugged die cast aluminium construction
  • Supports ETC Dimmer Doubling Technology
  • Rated up to 575W Ratings and Approvals:
  • The Source Four is UL and cUL listed, CE compliant, TUV approved and GS marked.

Check out the Source Four workbook spreadsheet. NCONTEST.xls.

It can help choose the right lighting fixture for your job! (You need Microsoft Excel to use this.)

Product Specifications Data Sheets CAD Blocks User Manuals (in pdf format):

All ETC User Manuals These files require the Adobe Acrobat reader to view.

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