ETC 426EDLT, 426EDLT-1 Data Sheet

®

Source Four® 26˚ETC

Ellipsoidal Series

S P E C I F I C A T I O N S

PHYSICAL

• Rugged, die cast aluminum construction

• Rotating shutter assembly ±25˚

• 20 gauge stainless steel shutters in a tri-plane assembly

• Interchangeable lens tubes with smooth-running teflon
guides provide nine user-fit field angle options

• Thermally insulated rear handle

• High impact, thermally insulated knobs and shutter handles

• Two accessory slots and a top mounted, gel frame retainer

• Steel yoke with two mounting positions

• Positive locking single-clutch fixture body

• Slot for glass or stainless steel patterns

• Wide accessory slot with sliding cover for motorized pattern
devices or optional iris

• UL and cUL Listed

ELECTRICAL

• 115-240V, 50/60Hz

• High temperature 3-conductor 36” leads in a glass fiber
outer sleeve

• Supports ETC Dimmer Doubling

LAMP

• 750W maximum

• HPL

–

compact tungsten filament contained in a krypton-

filled quartz envelope (see table for available lamp options)

• Patented filament geometry makes for extremely efficient
light collection and transmission

• Integral die cast aluminum heat sink lamp base

™

technology

S P E C I F I C A T I O N S

OPTICAL

• Re-optimized optical system for improved photometric
performance and field uniformity

• Projector-quality, high contrast aspheric lens

• Optional enhanced definition lens tube available for even
higher image quality

• 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

• Lens(es) secured with anti-vibration shock mounts

• Tool free, positive locking X, Y and Z lamp centering
adjustments, unaffected by relamping

• Beam edge continually adjustable hard-to-soft

• Interchangeable lens barrels permit selection of 5˚, 10˚, 14°,
19˚, 26˚, 36˚, 50˚, 70°, and 90° field angles as well as 19˚, 26˚,
36˚, and 50˚ EDLT lenses

O R D E R I N G I N F O R M A T I O N

Source Four

MODEL DESCRIPTION

426 26˚ ellipsoidal (black)

426-1 26˚ ellipsoidal (white)

ETC Source Four are supplied with C-clamp, color frame and 3’ (96cm) leads as
standard

Connector Designation

Use Suffixes below to specify Factory–Fitted Connector type

MODEL DESCRIPTION

-A Parallel-blade U-ground connector

-B Two-pin and ground, 20 amp connector

-C Grounded, 20 amp, twistlock connector

-M Dimmer Doubling Connector (NEMA L515P)

See back page for Source Four Accessories

1 of 4

ETC

®

Source Four® 26˚

Ellipsoidal Series

P H O T O M E T R I C S

Photometric data below is measured with an HPL 750W/115V 300 hr lamp. To convert data when using any other HPL lamp, use the lumen or
candela multiplying factors (Lm MF or Cd MF) for that specific lamp, listed in the Lamps table in this datasheet. For lumen data, multiply by the
Lm MF. For candela or footcandle data, multiply by the Cd MF.

18˚ 25˚

Field Angle

Beam Angle

Throw Distance (d)

Field Diameter

Illuminance (fc)

Illuminance (lux)

15’

4.6m

6.7’

2.0m

783 196 87 49

8,432 2,108 937 527

30’

9.1m

13.4’

4.1m

45’

13.7m

20.1’

6.1m

60’

18.1m

26.8’

8.2m

To determine center beam illumination in footcandles at any throw
distance, divide candela by the throw distance squared.

For Field diameter at any throw distance, multiply the throw distance
by .45

For Beam diameter at any throw distance, multiply the throw
distance by .32

Iso-Illuminance Diagram

(Flat Surface Distribution)

Y

10%

50%

% illuminance
foot candle or lux

X

Source Four 26˚(cosine)

Degree Candela

26˚

176,255 13,690 9,040 62.5% 18.3

Field

Lumens

Metric Conversions: For meters, multiply feet by .3048

For Lux multiply footcandles by 10.76

Beam

Lumens

Efficiency

Cosine Candela Plot

200000

180000

160000

140000

120000

100000

80000

Candela

60000

40000

20000

0

-15 -12 -9 -6 -3 0 3 6 9 12 15

Degrees

Lumens

per watt

X
Y

Complete IES photometry data files (LM-63-02 format) may be downloaded from the ETC website.

Go to http://www.etcconnect.com/downloads.asp

2 of 4

®

Source Four® 26˚ETC

Ellipsoidal Series

L A M P S

To determine Candela (Cd) or Lumens (Lm) for any other HPL lamp, multiply the Candela or Lumen value by the appropriate multiplying factor
(CdMF or LmMF) shown for that lamp in the table below.

Initial

ETC Part # Lamp Code Watts Volts

RT116 HPL 750/115** 750 115 21,900 3,250 300 1.00 1.00

RT196 HPL 750/115X 750 115 16,400 3,050 1,500 .64 .74

RT113 HPL 575/115** 575 115 16,520 3,250 300 .78 .82

RT114 HPL 575/115X 575 115 12,360 3,050 2,000 .56 .56

RT142 HPL 375/115 375 115 10,540 3,250 300 .66 .52

RT143 HPL 375/115X 375 115 8,500 3,050 1,000 .45 .40

N/A HPL 750/120 750 120 21,900 3,250 300 1.00 1.00

N/A HPL 750/120X 750 120 16,400 3,050 1,500 .64 .74

RT115 HPL 575/120 575 120 16,520 3,250 300 .78 .82

RT171 HPL 575/120X 575 120 12,360 3,050 2,000 .56 .56

RT112 HPL 550/77* 550 77 16,170 3,250 300 .77 .77

RT117 HPL 550/77X* 550 77 12,160 3,050 2,000 .59 .56

RT160 HPL 750/230** 750 230 19,750 3,200 300 .64 .75

N/A HPL 750/230X 750 230 15,600 3,050 1,500 .40 .59

RT129 HPL 575/230** 575 230 14,900 3,200 400 .53 .61

RT138 HPL 575/230X 575 230 11,780 3,050 1,500 .38 .45

RT154 HPL 375/230X 375 230 7,800 3,050 1,000 .29 .32

N/A HPL 750/240 750 240 19,750 3,200 300 .64 .75

N/A HPL 750/240X 750 240 15,600 3,050 1,500 .40 .59

RT130 HPL 575/240 575 240 14,900 3,200 400 .50 .61

RT139 HPL 575/240X 575 240 11,780 3,050 1,500 .36 .45

RT155 HPL 375/240X 375 240 7,800 3,050 1,000 .29 .32

Source Four is rated for 750W maximum

*77 Volt HPL lamps are for use with ETC Dimmer Doubling technology only

**Photometric data was prepared using a production fixture and the Prometric CCD measurement system. Fixture adjusted for cosine distribution and tested with calibrated
lamp at rated voltage. All data normalized to nominal lamp lumens in accordance with IES LM-73-04. Testing performed at ETC West, Hollywood, CA. All other multiplying
factors extrapolated from primary test data.

For links to photometry file downloads (IES LM-63-02 format) go to www.etcconnect.com

HPL Specified Tolerances: Watts +/- 5%, Lumens +/-7%, Average life +/-10%, Color Temperature +/- 50K

Lumens

Color

Temp. K

Average

Rated Life

26°

Cd MF

26°

Lm MF

“N/A” lamps are not available for purchase from ETC. Contact your Dealer for purchase.

3 of 4

®

Source Four® 26˚ETC

Ellipsoidal Series

P H Y S I C A L

14.9”/ 378mm max.

11.8”/ 300mm min.

10.0”/ 254mm max.

7.3”/ 185mm min.

8.5”

216mm

CTE

20.1”

511mm

6.8”

173mm

13.3”

338mm

22.8”

579mm

21.3”

541mm

O R D E R I N G I N F O R M A T I O N

Continued from front page...

Source Four Accessories

MODEL DESCRIPTION

426LT 26˚ lens tube complete (black)

426LT-1 26˚ lens tube complete (white)

426EDLT 26° Enhanced Definition Lens Tube complete

(black)

426EDLT-1 26° Enhanced Definition Lens Tube complete

(white)

400CC C–clamp (included)

400PH-A Pattern holder (A size)

400PH-B Pattern holder (B size)

400PH-G Glass pattern holder

400SC Safety cable

400RS Drop-in iris

400CF Colorframe (6.25”) (included)

400DN Donut (6.25”)

400TH Top hat

400HH Half hat

400GE Gel extender (Recommended for 19° and 26°

only)

407GE Conical gel extender (requires 407CF below)

407CF 7.5” Square color frame (required for 14°, 70°,

90° and 407GE)

400FB Source Four fixture body, single clutch

Note: For colors other than black or white, please call ETC.

Source Four Weights

*

MODEL WEIGHT SHIPPING WEIGHT

lbs kgs lbs kgs

26˚ 14 6.4 20 9.1

*Includes 2.3 lbs for C-clamp

Corporate Headquarters • 3031 Pleasant View Rd, PO Box 620979, Middleton WI 53562 0979 USA • Tel [phone] • Fax [phone]
London, UK • Unit 26-28, Victoria Industrial Estate, Victoria Road, London W3 6UU, UK • Tel [phone] • Fax [phone]
Rome, IT • Via Pieve Torina, 48, 00156 Rome, Italy • Tel [phone] • Fax [phone]
Holzkirchen, DE • Ohmstrasse 3, 83607 Holzkirchen, Germany • Tel [phone] • Fax [phone]
Hong Kong • Room 1801, 18/F, Tower 1 Phase 1, Enterprise Square, 9 Sheung Yuet Road, Kowloon Bay, Kowloon, Hong Kong • Tel [phone] • Fax [phone]
Web • www.etcconnect.com • Copyright©2010 ETC. All Rights Reserved. All product information and specifications subject to change. 7060L1008 Rev. G Printed in USA 12/10

Source Four products are protected by one or more of the following
patents:

U.S. USRE36,3316, US5,345,371, US6,092,914 and

US5,775,799

U.K. GB0592589, GB0673488, 99930527.9*

Germany DE0592589, GB0673488, 99930527.9*

Japan JP2,501,772

* European patent application number

4 of 4