L3.40750.D TB ST2_3-1

True Blue ST2/3

The ideal choice for TV and film studios

ARRI True Blue represent an unprecedented evolution of the studio fixtures that have been popular workhorses for over two decades. Following extensive research and feedback from lighting professionals around the world, combined with advances in technology, ARRI has designed a series of six highly innovative lampheads with over 30 new improvements for studio and location lighting. ARRI Fresnels are available in both manual and pole-operated versions.

Using a 3,000 W lamp allows a 65 % higher light output while maintaining the size and weight of the fixture. Modern studio dimmer systems have the capacity to support 3,000 W, and in contrast to 5,000 W lamps, this power class can be operated within the standard 16 V - 230 V power grid of most countries. This saves costs in cabling and energy, and purchase costs of the fixture itself. Another possible scenario is a switch to HD recording systems, which are still less sensitive than SD cameras. In these situations the 2,000 W lamps can simply be replaced with 3,000 W lamps to provide the illumination headroom required.

Note: This change does not apply to the 120 V version!


  • Cross Cooling System: new, highly effective cooling streams in addition to conventional cooling
  • Sliding Stirrup: centre of gravity adjustment
  • Tilt Lock: stainless steel friction disc for rigid lock-off
  • Top Latches: application-oriented Top Latches for location or studio use
  • Adjustable Accessory Brackets: adjustable 2-scrim and 4-scrim position
  • Stainless Steel Lens Protection: maximised light transmission and high temperature stability
  • Extremely Robust Barndoors: made of special alloy with high strength-to-weight ratio and effective tightening function
  • Maintenance: more shared parts, very fast access to all interior workings with three torx drivers only
  • Protection Class IP23: safe indoor and outdoor use
  • Safety Certification: CE, GS, cNRTLus
Technical Data
True Blue ST
True Blue ST2/3
Mains Plug
Schuko, Bare Ends
Lamphead Type
Fresnel, 3,000 W
Spherical specular high purity aluminium
Lamp Type
only 230 V: 2,000 W (FKK), 3,000 W (HX48)
Power Consumption
3,000 W, 2,000 W
Voltage Range
220 to 240 V
Lamp Base
yes, 0 to 100 % via external dimming system
Correlated Color Temperature
3,200 K
Beam Angle
7.9° to 56° / 11.6° to 56.3° (with 2 kW / 3 kW lamp)
Weight in kg net*
approx. 12 kg
Weight in kg packed*
approx. 15 kg
Weight in lbs. net*
approx. 26 lbs
Weight in lbs. Packed*
approx. 33 lbs
Measurements (HxWxL) incl. Pin in mm*
Measurements (HxWxL) excl. Pin in mm*
522 x 448 x 380 mm
Measurements (HxWxL) incl. Pin in inch*
Measurements (HxWxL) excl. Pin in inch*
20.6 x 17.6 x 15.0"
Measurements (HxWxL) Packed size in mm*
495 x 515 x 550 mm
Measurements (HxWxL) Packed size in inch*
14.5 x 20.3 x 21.7"
Lens / UV-Protection Glass Diameter in mm
250 mm
Lens / UV-Protection Glass Diameter in inch
Accessory Diameter in mm
330 mm
Accessory Diameter in inch
13.0" (Scrim)
Barndoor in mm
344 mm
Barndoor in inch
Spigot 28 mm / 1 1/8" (1.1")
Housing Color
Blue/Silver, Black
Protection Class / IP Rating
I / IP23

Note *Weight and dimensions are rounded values.