The Arri L7-T Tungsten LED Fresnel Lamphead with Active Cooling (Stand Mount) is part of is at the vanguard of an advanced generation of lighting equipment that can be seamlessly integrated into the studio or onto the set without sacrificing features or performance.
The key characteristic of any Fresnel is flood to spot capability and the L7-T meets and exceeds expectations with an impressive beam angle of 15-50deg. There's simply no learning curve or accommodation to be made when swapping out L-7s fixture for fixture with standard Fresnels. In fact, you're not going to be moving them around or juggling scrims in high places thanks to the 100 - 0% on-board dimming. This version of the L7 cools via an on-board fan that that works in tandem with the unit's heat sink. The on-board controller allows manual intensity control as well as +/- green adjustment. All of the functions can be controlled via DMX, an ideal feature for broadcast studios.
The L7-T produces the equivalent of a 750W tungsten light while drawing only 220W for a savings of 75% over similar output tungsten lights. And low heat means lower AC bills in the studio. You can actually run 9 L-7s from a 20A, 110V outlet as opposed to two 1,000W or three 650W standard fixtures. When it comes to performance and features, the L7-T might just be the perfect light source.
Active cooling allows the L7 to be smaller and lighter than some convection cooled models. The L-7's fan works in tandem with the heat sink. Fan stays on during operation.
Familiar but Revolutionary
Quality of light begins with the field. Smooth intensity, uniform color, even illumination: all are traits shared by the L-Series and conventional ARRI Fresnels. And, as Fresnel fixtures are already workhorses of the lighting industry, designers and technicians now have nothing new to learn in order to use LED technology.
A key element of the versatility of traditional Fresnels is the ability to spot and flood the beam as needed. Whether it's a flood field for a pullback shot or a tight spot for a bright highlight, the continuous focusing of the L-Series lives up to your expectations. And, unlike traditional Fresnels, which have significant light waste in spot focus, the efficient L-Series optical system maintains the same field lumens in all focus positions.
Versatile, Controllable Beam
Whether shaping the beam to isolate talent and set elements or cutting the field to eliminate spill light, controllability is crucial to lighting. L-Series Fresnels provide the same ability to cut and shape with barndoors and flags.
Even Light Field
Clear, defined shadows have traditionally have only been a trait of single source tungsten and daylight fixtures. ARRI L-Series Fresnels provide the same single shadow properties designers expect, delivering natural results.
True Blue-style focus knobs provide the precise adjustment and rapid flood-to-spot that users enjoy from manual, mechanical control. Knobs on both sides of the fixture ensure easy access from all positions, eliminating the need for awkward reaching around the fixture. Turning the knobs is neither tedious nor time-consuming; full flood-to-spot can be achieved in only three turns.
The ARRI sliding stirrup design enables precise adjustment of the fixture's center of gravity, to compensate for front-end accessories. It also creates the option of pulling the fixture back and reducing its hanging height.
With an extremely slim profile, the extruded aluminum yoke provides high strength without added weight. An optional pole-operated yoke allows full operation of pan, tilt and focus from the floor and is therefore a popular choice for many studios.
The high strength tilt lock provides extremely secure locking, eliminating movement and slippage and ensuring that the fixtures will stay where you put them.
For broadcast studios, remote fixture control is of paramount importance and all functions of the L-7 are controllable through DMX. The L-7 is also fully RDM compatible, providing bi-directional feedback and reporting of parameters including system status, hours on the light engine, calibration data from the internal color sensor and current DMX address, with the ability to remotely assign and address all fixtures in a DMX network.
The on-board controller has manual intensity adjustment and additional controls for plus/minus green.
There is much discussion about the "green" credentials of LEDs in the market. L-Series fixtures reduce electricity usage by 75% and their LED light engines last 200 times longer than normal bulbs, when compared to conventional tungsten Fresnels.
Lighting teams working on location will love the versatility they can achieve in small to medium-size packages. Nine ARRI L-7 Fresnels can be run off a single 20A, 110V outlet, as opposed to only two 1,000W or three 650W tungsten Fresnels.
The L-7 is an expandable platform designed to adapt with the latest enhancements in LED chip performance. The light engine is fully upgradeable, ensuring that the fixtures can take advantage of technology advances as and when they happen. The firmware is also upgradeable through the USB port on the rear of each unit, accommodating future control protocols such as ACN and incorporating other system enhancements that may become available in due course. In addition, future optical accessories will bring new levels of functionality to the platform, further expanding the L-Series versatility.