Introducing the revamped Ushio HPL+ lamp, now the most powerful HPL available. With its newly designed ultra-compact filament, this lamp enhances the optical efficiency of your ETC Source Four™ fixtures, delivering up to 20% more lumens—meaning you get more light without changing the fixture.
Unlike competing HPL lamps, which have larger filament dimensions, Ushio’s innovative 6.0mm x 9.5mm filament design was developed in collaboration with ETC engineers. This compact profile optimizes light distribution, maximizing both axial and radial efficiency.
The precise optics of the Source Four require equally precise lamp engineering. Ushio has addressed this need by creating a reduced geometry filament that meets high manufacturing standards. Enjoy measurable performance, reliable quality, a range of lamp types, and cutting-edge design tailored for your theatrical needs.
DATA SPECIFICATIONS
USHIO Item Code
1000668
Product Series
HPL
Prod. ID / ANSI Code
HPL-550/77V+
Description
HPL-550/77V+, JS77V+-550WC, 300 Hour
Description 2
550W 77V+
Item Type
Halogen
Base
HT/SNK
Voltage
77
Wattage
550
Burn Position
ANY
Bulb Shape
T6
Bulb Finish
CLEAR
Color Temp (K)
3250
Efficacy (lm/W)
28.7
Filament
4-C8
Front Glass Cover
NO
Initial Lumens (lm)
16520
Luminous Flux (lm)
16170
Life (hr)
300
Diameter (mm)
18.35
MOL (mm)
104
Light Center Length (mm)
60.3
Case Qty
10
Works with the following ETC Source Four™ fixtures:
Source Four jr: Rated up to 575W
Source Four jr Zoom: Rated up to 575W
Source Four: Rated up to 750W
Source Four Zoom: Rated up to 750W
Source Four PAR EA: Rated up to 750W
Source Four PAR MCM: Rated up to 575W
Source Four PAR Nel: Rated up to 750W
Dimensions: 104 mm x 60.3mm x 18.35mm
Product Details
550W, 77V stage and studio lamp with a 300-hour lifespan for bright, reliable lighting – Model: 1000668.
Ceramic heat sink base provides consistent resistance to electric conductivity throughout the lamp's life.
Unique four- and six-filament designs improve light collection efficiency in compact fixtures.
Tapered pins ensure a reliable and easy fit into fixture sockets, minimizing installation difficulties.
Available in a wide range of voltages and wattages, offering flexibility between maximum output and extended lamp life.
