ETC/Elec Theatre Controls 42550J
25º-50º Source Four jr Zoom in Black WITHOUT Terminating Connector

OUR PART #  S4JR-25/50

Our Price: $270.66
List Price: $370.00
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If you're looking for the field-angle versatility of a zoom ellipsoidal with the affordability and design of a smaller fixture, then you're looking for the Source Four jr Zoom. Great for applications on the small stage or in clubs, retail events and industrials, the Source Four jr Zoom boasts rugged ETC fixture construction and all the celebrated precision optics of a Source Four.

NOTE: This Source Four jr Zoom is unterminated.


  • 25º-50º Zoom
  • Rated up to 575W
  • Super-efficient HPL lamp
  • Faceted dichroic reflector removes 90% of IR heatfrom beam
  • Two-plane stainless-steel shutter blade assembly
  • Tool-free lamp adjustment
  • Rugged die-cast aluminum construction
  • Supports ETC Dimmer Doubling™



  • Rugged die cast aluminum construction
  • 20 gauge stainless steel shutters in a bi-planeassembly
  • High impact, thermally insulated knobs and shutterhandles
  • Two accessory slots, and a top mounted, gel frameretainer
  • Steel yoke with two mounting positions
  • Positive locking, hand-operated yoke clutch
  • Slot for glass or stainless steel patterns
  • Slot with sliding cover for motorized pattern devicesor optional iris
  • UL and cUL Listed


  • 115-240V, 50/60Hz
  • High temperature 3-conductor 36” leads in a glassfiber outer sleeve
  • Supports ETC Dimmer Doubling™ technology


  • 575W maximum
  • HPL – compact tungsten filament contained in akryptonfilled quartz envelope (see table for suitable lamp types)
  • Patented filament geometry provides extremelyefficient light collection and transmission
  • Integral die cast aluminum heat sink lamp base


  • Optimized optical system for efficient photometricperformance
  • Two bi-convex lenses
  • Faceted borosilicate reflector with dichroic coldmirror coating removes greater than 90% infrared radiation (heat) and reflectsgreater than 95% of visible light
  • Reflector secured with anti-vibration shock mounts
  • Tool free, positive locking X, Y and Z lamp centeringadjustments, unaffected by relamping
  • Beam edge continually adjustable hard-to-soft

NOTE: ETC Source Four jr Zooms are supplied with c-clamp, color frame, and 3’ (96cm) leads as standard.

SmartStand Caster Kit, 3 packETC/Elec Theatre Controls ST-C SmartStand Caster Kit, 3 pack

This accessory is a set of three locking casters for the SmartStand crank-up lighting support unit.

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115V LampOsram Sylvania HPL575/115V 115V Lamp

The Osram Sylvaia HPL575/115V is a 115 volt replacement bulb for studio and stage.Osram Sylvania HPL575/115V Specifications: Clear FinishVolts: 115VBase: Medium Bi-Pin with Heat SinkWatts: 575WShape: T6Overall Length: ...

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115V, 375W LampOsram Sylvania HPL375/115X 115V, 375W Lamp

The Osram Sylvania 54649 is a 375 watt, long life, tungsten halogen bulb from the HPL series.Osram Sylvania 54649 Specifications: Technology: HalogenWatts: 375WVolts: 115VVoltage Group: Line voltageFinish: ClearShape: T6Base: ...

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115V/575W LampOsram Sylvania HPL575/115X 115V/575W Lamp

The Osram Sylvania HPL575/115X-OS is a 115 volt lamp for stage and studio.Osram Sylvania HPL575/115X-OS Specifications: 115 Volts575 Watts2000 Hour Lamp LifeClear FinishBase: Medium bi-pin with heat sinkShape: T6Overall Length: 98 ...

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Black Top Hat, 5" TubeETC/Elec Theatre Controls 400TH Black Top Hat, 5" Tube

This accessory is a black Top Hat with a 5" tube that intended to be used with 19-50 degree Source Four and Source Four jr fixtures.

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C-Clamp for ETC Fixtures, BlackETC/Elec Theatre Controls 400CC C-Clamp for ETC Fixtures, Black

This C-Clamp from ETC is useful for mounting and locking lighting fixtures to a grid pipe and includes an M12 thread screw for the fixture yoke.

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Edison Connectors, 15A Male PGB (NEMA 5-15P)Altman 52-5266C Edison Connectors, 15A Male PGB (NEMA 5-15P)

15 Amp, 125 Volt, NEMA 5-15P, 2P, 3W, Plug, Straight Blade, Industrial Grade, Grounding. Black/White.

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30" Source Four Safety Cable in BlackETC/Elec Theatre Controls 400SC 30" Source Four Safety Cable in Black

This black safety is 30" in length and is a useful Source Four fixture accessory.Specifications: Cable is a 30" long, 1/8" diameter black wire rope cable with snap clamp fitted. The safety ratio of the cable is 5:1 The breaking load ...

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Pattern Holder - M SizeETC/Elec Theatre Controls 400PH-M Pattern Holder - M Size

This Source Four accesorry is a M size pattern holder for Source Four jr fixtures.Specifications:  X = 2.12” Y = 2.75”

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DonutETC/Elec Theatre Controls 400DN Donut

This Source Four fixture accessory is a 6.25-inch donut that controls flare in template projections.NOTE: Use A-size pattern holder with Source Four for maximum pattern effectiveness.

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Color Frame for the Source FourETC/Elec Theatre Controls 400CF Color Frame for the Source Four

Product shown in image is for illustrative purposes only. Actual product may vary in appearance.Color Frame for the Source Four.

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20A Stage Pin Male Connector in Black with Crimp Lug PinUnion Connector 20-2P&GMC 20A Stage Pin Male Connector in Black with Crimp Lug Pin

Union Connector's 20-2P&GMC is a 20A male stage pin connector with crimp lug pin and black cover.Union Connector 20-2P&GMC Features: UL Listed ULc Listed for use in Canada Rated 20A., 125V Pin Configuration conforms to USITT ...

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SmartStand With Adapter in BlackETC/Elec Theatre Controls ST SmartStand With Adapter in Black

A ‘mini rig’ for SmartBars and Source Fours! ETC’s SmartStand is a perfect complement to ETC’s SmartBars and Source Four fixtures. Easily loaded with a dimmer bar and lighting fixtures, this collapsible, crank-up stand works like a ...

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Drop In Iris for Source Four JrETC/Elec Theatre Controls 400JRS Drop In Iris for Source Four Jr

Drop In Iris for Source Four jr and jr Zoom fixtures.

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Our Price:$105.00List Price: $125.00You save 16%!

5" Gel ExtenderETC/Elec Theatre Controls 400GE 5" Gel Extender

This Source Four accessory is a black Gel Extender that measures 5x6.25x5 inches. By placing your gels further away from your fixture's gel plane you'll get better gel life.

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Our Price:$26.88List Price: $32.00You save 16%!

SmartStand Adapter StudETC/Elec Theatre Controls ST-A SmartStand Adapter Stud

This accessory is an additional adapter (stud) - 1/2"-13, for the SmartStand crank-up lighting support unit.

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Our Price:$27.00List Price: $30.00You save 10%!

Black Half HatETC/Elec Theatre Controls 400HH Black Half Hat

This Source Four accessory is a black Half Hat that measures 7x7x6 inches. Like the Top Hat this unit helps to control and reduce flare but from one side only.

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Our Price:$18.48List Price: $22.00You save 16%!

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