1.01	Variable white-light Light Emitting Diode Profile fixture 
A.	General
1.	The fixture shall be a variable white-light high-intensity LED illuminator with DMX control of intensity and color temperature. The fixture shall be a Source Four LED as manufactured by Electronics Theatre Controls, Inc. or approved equal. 
2.	All LED fixtures shall be provided by a single manufacturer to ensure compatibility
3.	The fixture shall be UL 1573 listed for stage and studio use
4.	The fixture shall comply with the USITT DMX-512A standard
B.	Physical
1.	The unit shall be constructed of rugged, die cast aluminum, free of burrs and pits, finished in black.
2.	The following shall be provided:
a.	Lens secured with silicone shock mounts
b.	Shutter assembly shall allow for +/-25 rotation
c.	20 gauge stainless steel shutters
d.	Interchangeable lens tubes for different field angles with Teflon guides for smooth tube movement
e.	Sturdy integral die cast gel frame holders with two accessory slots, and a top-mounted, quick release gel frame retainer
f.	Rugged steel yoke with two mounting positions allowing 300+ rotation of the fixture within the yoke
g.	Positive locking, hand operated yoke clutch
h.	Slot with sliding cover for motorized pattern devices or optional iris
3.	The housing shall have a rugged black powder coat finish
a.	White or silver/gray powder coat finishes shall be available as color options
b.	Other powder coat color options shall be available on request
4.	Power supply, cooling and electronics shall be integral to each unit.
5.	The unit shall ship with:
a.	Theatrical-style hanging yoke as standard
b.	5’ Neutrik PowerCon™ to Edison power cable as standard
c.	Gate diffuser 
d.	A-size pattern holder
6.	Available options shall include but not be limited to:
a.	Bare-end, Stage-Pin or Twist-lock type-equipped power leads 
b.	PowerCon to PowerCon cables for fixture power linking
c.	Smooth Wash Diffuser for overlapping beams of light from multiple fixtures
C.	Optical
1.	The light beam should have a 2-to-1 center-to-edge drop-off ratio 
2.	The unit shall provide, but not be limited to:
a.	Low gate and beam temperature
b.	Sharp imaging through a three-plane shutter design
3.	The unit shall provide, but not be limited to:
a.	5, 10, 14, 19, 26, 36, 50, 70 and 90 degree field angles
b.	High-quality pattern imaging
c.	Sharp shutter cuts without halation
d.	Shutter warping and burnout in normal use shall be unacceptable
e.	Adjustable hard and soft beam edges
4.	19, 26, 36, and 50 degree units shall have optional lens tubes available for precision, high-contrast imaging.
D.	Environmental and Agency Compliance 
1.	The fixture shall be ETL and cETL LISTED and/or CE rated, and shall be so labeled when delivered to the job site.
2.	The fixture shall be UL LISTED to the UL1573 standard for stage and studio use 
3.	The fixture shall be rated for IP-20 dry location use.
E.	Thermal 
1.	Fixture shall be equipped with a cooling fan.
a.	Fan speed control via a DMX channel shall be possible
b.	Fan speed software shall permit the fixture to override DMX fan speed setting to prevent heat damage to the fixture
2.	The fixture shall utilize advanced thermal management systems to maintain LED life to an average of 70% intensity after 50,000 hours of use
a.	Thermal management shall include multiple temperature sensors within the housing to include:
1)	LED array circuit board temperatures
2)	Temperature sensors placed on each individual LED color circuit
3)	Fixture ambient
4)	CPU 
b.	Fixture user shall permit monitoring of temperature sensors via a legible LCD multi-line backlit display
c.	Fixtures that do not provide active thermal monitoring of LED circuits and other temperature readings shall not be acceptable
3.	The fixture shall operate in an ambient temperature range of -20°C (-4°F) minimum, to 40° C (104°F) maximum ambient temperature. 
F.	Electrical
1.	The fixture shall be equipped with a 100V to 240V 50/60Hz internal power supply 
2.	The fixture shall support power in and thru operation 
a.	Power in shall be via Neutrik® PowerCon™ input connector
b.	Power thru shall be via Neutrik ® PowerCon ™ output connector
c.	Fixture power wiring and accessory power cables shall be rated to support linking of multiple fixtures up to the capacity of a 15A breaker
3.	The fixture requires power from a non-dim source 
4.	Power supply outputs shall have self-resetting current-limiting protection
5.	Power supply shall have power factor correction
G.	LED Emitters
1.	The fixture shall contain a minimum of five different LED colors to provide characteristics as described in the Color Section below.
2.	All LEDs used in the fixture shall be high brightness and proven quality from established and reputable LED manufacturers. 
a.	Fixture shall utilize Luxeon® Rebel™ and/or Osram OSLON Square LED emitters
3.	Manufacturer of LED emitters shall utilize an advanced production LED binning process to maintain color consistency.
4.	LED emitters should be rated for nominal 50,000-hour LED life to 70% intensity
5.	All LED fixtures (100% of each lot) shall undergo a minimum eight-hour burn-in test during manufacturing.
6.	LED system shall comply with all relevant patents
H.	Warranty
1.	The fixture shall be provided with the minimum warranty:
a.	5 years full fixture coverage
b.	10 years LED coverage
I.	Calibration
1.	Fixture shall be calibrated at factory for achieve consistent color and intensity output between fixtures built at different times and/or from different LED lots or bins
a.	Calibration data shall be stored on the LED array as a permanent part of on-board operating system
b.	All arrays, including replacement arrays shall be calibrated to the same standard to insure consistency
c.	Fixtures not offering LED calibration shall not be acceptable
J.	Color
1.	The fixture shall utilize a minimum of 60 LED emitters
2.	The fixture shall be available in a specialized LED array as outlined below:
a.	Source Four LED Studio HD
1)	Mint, red, orange, blue, and indigo in an array designed to provide a variable white-light adjustable from 2700K to 6500K. This array shall be the Studio HD array as manufactured by Electronic Theatre Controls, or approved equal
a)	Measured brightness of the Studio HD array shall be greater than 4,000 field lumens
K.	Dimming
1.	The LED system shall use 15-bit nonlinear scaling techniques for high-resolution dimming.
2.	At least four different dimming curve options shall be accessible at the fixture’s User Interface
a.	Incandescent
b.	Standard
c.	Linear
d.	Quick
3.	Dimming curves shall be optimized for smooth dimming over longer timed fades. 
4.	The LED system shall be digitally driven using high-speed pulse width modulation (PWM)
5.	LED control shall be compatible with broadcast equipment in the following ways:
a.	PWM control of LED levels shall be imperceptible to video cameras and related equipment
b.	PWM rates shall be adjustable by the user at the fixture if necessary to avoid any visible interference to video cameras and related equipment
L.	Control and User interface
1.	The fixture shall be USITT DMX 512A-compatible via In and Thru 5-pin XLR connectors 
2.	The fixture shall be compatible with the ANSI RDM E1.20 standard
a.	All fixture functions shall accessible via RDM protocol for modification from suitably equipped control console
b.	Temperature sensors within the luminaire shall be viewable in real time via RDM
c.	Fixtures not offering RDM compatibility, feature set access or temperature monitoring via RDM shall not be compatible
3.	The fixture shall be equipped with multi-line LCD display for easy-to-read status reports and configuration changes
4.	The fixture shall be equipped with a six-button user-interface
5.	The fixture shall offer multiple DMX input profile options to include:
a.	RGB - control of all individual LED colors via a three-channel profile
1)	Red, Green, Blue
b.	HSI – control of all individual LED colors via a three-channel profile
1)	Hue, Saturation, Intensity
c.	HSIC – control of all LED colors via a four-channel profile
1)	Hue, Saturation, Intensity and Color Point
a)	Color point provides variable color temperature settings
d.	Direct – control of each individual color channel via an independent channel
e.	Studio – Control of the fixture in a white-light 3 channel profile
1)	Intensity, Color Temperature, +/- Green (Tint)
a)	Without DMX the fixture can master other Source Four LEDs and Desire fixtures that are connected via 5 pin XLR DMX cables
f.	A variable-rate strobe channel shall be provided
6.	The fixture shall offer three output settings
a.	Boost mode - powers LEDs at maximum intensity and provides no compensation against LED ‘droop’ or intensity loss 
b.	Regulated mode – slightly restricts maximum LED intensity levels to compensate against LED droop
c.	Protected mode – further restricts maximum LED intensity levels to compensate against LED droop and offer color consistency at highest permissible ambient temperatures (40C)
d.	Fixtures that do not provide regulated and protected operation modes are not acceptable
7.	The fixture shall offer additional user-definable options to including but not limited to:
a.	Display time out options
b.	Loss of data behavior options
c.	White point settings
d.	Red-shift option for tungsten dimming emulation
8.	The fixture shall offer five Quick Set-Ups to allow user to rapidly select different combinations of the numerous user options based on the desired usage situation, to include:
a.	General – for most situations
b.	Stage – when emulating incandescent fixtures is desired
c.	High Impact – when maximum output and effect is desired
d.	XT Arch – when color consistency and architectural characteristics are desired. 
e.	Studio - when DMX or stand-alone of white light output is required with intensity, color temperature and color tint control parameters
9.	The fixture shall offer stand-alone functionality eliminating the need for a console
a.	Fixture shall ship with 24 preset colors accessible as a stand-alone feature
b.	Fixture shall ship with 12 sequences accessible as a stand-alone feature
c.	Each color and sequence can be modified by the end user
d.	Fixtures can be linked together with standard DMX cables and controlled from designated master fixture
1)	Up to 32 fixtures may be linked 
e.	Fixtures in a stand-alone state shall restore to the settings present prior to power cycling, eliminating the need for reprogramming
f.	Fixtures without stand-alone operation features described above shall not be acceptable.
10.	The fixture shall be capable of copying all performance settings to other fixtures of the same type via a 5 pin XLR DMX cable