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The ETCSource Four Ellipsoidal Lighting Fixture with Dimmer (25-50˚ Zoom, Black) features a rugged die-cast and extruded aluminum construction. With the patented one-handed zoom operation, adjustments are quick, simple and safe. Technicians can focus with one hand and hold the ladder with the other. And the lens-tube door provides quick and easy access when you want to clean the lens assembly, tool-free. The patented dichroic mirror allows shutters and accessories to stay cool, and drop-in accessories are interchangeable with fixed-focus fixtures. Rated up to 750W, Source Four Zoom gives you crisp optics for excellent imaging and field quality.
Using the electronic Silent (eS) technology and a convection-cooled design, the attached high-performance dimmer can be placed in acoustically sensitive venues. By taking DMX control signals directly, this self dimming tungsten fixture can now reside alongside LEDs and moving lights, allowing system designs to focus on switched power and data distribution instead of centralized dimming systems.
Rated up to 750W
Rugged die-cast and extruded aluminum construction
Patented one-handed focus mechanism with positive lock
Rotating shutter assembly ±25˚
20-gauge stainless steel shutters in a tri-plane assembly
Lens tube door provides easy access for lens cleaning
Scale markings for field angle and focus settings
Thermally insulated rear handle
High impact, thermally insulated knobs and shutter handles
Integral die cast color frame holder with two accessory slots, and a top mounted, color frame retainer
Steel yoke with two mounting positions
Positive locking double-clutch yoke
Slot for glass or stainless steel patterns
Wide accessory slot with sliding cover for motorized pattern devices or optional iris
UL and cUL listed
High temperature 3-conductor 36" leads in a glass fiber outer sleeve
Supports ETC Dimmer Doubling technology
Re-optimized optical system for improved photometric performance and field uniformity
Faceted borosilicate reflector with dichroic cold mirror coating removes greater than 90% infrared radiation (heat) and reflects greater than 95% of visible light
Reflector secured with anti-vibration shock mounts
Lenses (sold separately) have anti-reflective coatings
Lenses secured with anti-vibration shock mounts
Low gate and beam temperature, shutters will not warp or distort
Tool free, positive locking X, Y, and Z lamp centering adjustments, unaffected by relamping
Designed for use with all tungsten Source Four family fixtures
Electronic Silent technology for operation free of dimmer- and lamp-filament noise
Changes your Source Four into a truly distributed fixture with onboard dimming and control
Electronic Dimming with harmonic and noise suppression
Acoustic specification replaces dimmer rise time
Manufactured of epoxy-painted aluminum body and anodized aluminum heat sink
Multiple yoke-fixing hole combinations for flexible mounting to the fixture
Convection-cooled; operates without cooling fans
DMX512A/RDM In and Thru via 5-Pin XLR connectors
Bare-end power cable input
Lamp burner directly connected to output cable
2,500V isolation between control and power components
Electronic overcurrent protection
Supports up to 32 units on one DMX line
Three-Button Local Control: Focus/test, up and down
Single button DIM to full for focus
Up/down buttons for setting DMX address or for local intensity control
One Status Indicator: Multicolor LED for power, error, and valid DMX
Produces no lamp noise (exceeds all rise time specs) as electronics sound-pressure level less than 0 dBa at 3.2' (1m)
ANSI E1.20 RDM and ANSI E1.11 DMX512A
RDM: Discover (flashes light output); find and set DMX address; change curve; receive overcurrent/undercurrent warnings; receive over temperature warning
Yoke mount, universal mounting bracket included for direct mounting on a fixture yoke in multiple orientations to accommodate maximum flexibility
Up and down level control, returns to previous level after power loss
No electrical assembly required
Applications: Theaters, hybrid incandescent, LED and discharge systems, industrial productions, rentals, conference and exhibition centers, multi-use venues such as schools and meeting rooms, and any application requiring distributed dimming and position flexibility
ETC Source Four Zoom Specs
25 to 50˚
750 W maximum
±25˚ shutter assembly
20-gauge stainless steel
115 to 240 V, 50/60 Hz
Degree: 25˚, Candela: 150,745, Field Lumens: 15,035, Beam Lumens: 11,165, Efficiency: 68.7%, Lumens per Watt: 20.0
Illuminance: 7,212 lux (670 fc) at Throw Distance: 15.0' (4.6 m),Field diameter: 7.3' (2.2 m) Illuminance: 1,803 lux (167 fc) at Throw Distance: 30.0' (9.1 m), Field diameter: 14.6' (4.5 m) Illuminance: 801 lux (74 fc) at Throw Distance: 45.0' (13.7 m), Field diameter: 21.9' (6.7 m) Illuminance: 536 lux (50 fc) at Throw Distance: 55.0' (16.8 m), Field diameter: 26.8' (8.2 m)
Degree: 50˚, Candela: 63,480, Field Lumens: 14,780, Beam Lumens: 8,600, Efficiency: 67.5%, Lumens per Watt: 19.7
Illuminance: 6,833 lux (635 fc) at Throw Distance: 10.0' (3.0 m),Field diameter: 8.4' (2.6 m) Illuminance: 1708 lux (159 fc) at Throw Distance: 20.0' (6.1 m), Field diameter: 16.9' (5.2 m) Illuminance: 759 lux (71 fc) at Throw Distance: 30' (9.1 m), Field diameter: 25.3' (7.7 m) Illuminance: 558 lux (52 fc) at Throw Distance: 35' (10.1 m), Field diameter: 29.6' (9.0 m)
What kind of power source is needed to run or test the light?
Asked by: Lester
This light can be connected to a stage pin type connection.
Answered by: Kirk
Date published: 2019-03-13
Do any of the zooms have an edison connection?
Asked by: Geoff
Yes that model does come with an Edison plug.It is ETC Source Four Zoom Ellipsoidal Spotlight, Black, Edison Plug - 25-50 Degrees (115-240V AC) B&H # ET42550EB MFR # 7060A1042-0XA.
Answered by: Robert K.
Date published: 2018-08-27
Is there any difference between the light coming ...
Is there any difference between the light coming from an ETC Source 4 with a 50 degree fixed lens and an ETC Source 4 Zoom in the 50 degree setting? Perhaps a difference in output/brightness, contrast, crispiness, or hue?