The BarFly operates high output yet uses less power to produce the same amount of
soft light as incandescents.
The BarFly 450 is brighter than a 1,000 Watt tungsten softlight, but draws only
2 amps, while the BarFly 200D equals the light output as a
500 Watt tungsten softlight drawing only 1 amp of power.
This is especially important when shooting on location and power availability
is an issue.
The BarFly’s metal alloy, all-in-one compact design is lightweight and incorporates a built-in dimming ballast with onboard dimming control and individual lamp switching. The BarFly 450 also features DMX dimming and DMX lamp switching. A remote dimmer accessory (DIM-5) can also
be used when the fixture is hung out of reach. With universal input voltage from 100VAC-240VAC, the BarFly can be used anywhere in the world. The BarFly comes with a built-in reflector, removable gel frame, and honeycomb louver and uses a removable center mount, sold separately.
Long Lamp Life
Lamp life of a compact fluorescent for the television and motion picture industry is determined more by its lumen maintenance than by its actual burn time. All fluorescent lamps display a lumen depreciation curve.
This means that over time the light output gradually drops and lowers in color temperature.
All fluorescent lamps require some “burn-in” time before they operate at their rated Kelvin temperature and brightness. For dimming products, the lamps perform best after 100 hours of operation.
True Match® Color-Correct Lamps
True Match® lamps are specially formulated to correspond to the spectral distribution curves of film and
video cameras as well as look correct to the eye. They are designed to match the colors from quartz units or daylight sources such as HMI’s. This gives the operator the option of mixing quartz hard light sources with fluorescent soft sources. Most lighting designers want the ability to use both qualities of light to enhance the set.
Architectural lamps are designed to optimize government-mandated standards for lumens per watt efficiencies (energy savings targets).
In order to achieve these standards, the lamps contain high levels of light in the green spectrum, which our eyes don’t perceive as inaccurate. Film and television cameras do record this added green. For example, green renders Caucasian skin tone as grayish and unattractive. The architectural lamps do not match with other studio lamps. They render colors inaccurately and make correction in post almost impossible.
In 1995 Kino Flo received a technical achievement award from the Academy of Motion Picture Arts and Sciences for the development of the first color-correct lamps for film. Kino Flo continues to be a leader in the industry introducing new developments and constantly improving the efficiencies and formulations of its lamp technology. Heat Management Design
For Kino Flo, heat management is a critical design element of fixture design. The physical heat of the lamp or buildup heat within the fixture will directly influence the color temperature, lumen performance and lamp life.
In order to maintain a stable color temperature stability and best color rendering, the lamp requires:
- A cool spot at the tip of the lamp.
- Vertical orientation where the base of the lamp is above the lamp tip.
The BarFly design addresses these requirements:
- The lamps are properly spaced apart to maximize light output and minimize heat buildup.
- The reflector is vented in the back to increase airflow.
- The fixture is well ventilated at the lamp tips to minimize heat.
- The power cord is oriented in such a manner that the lamp tips will naturally be in the down position
when operating fixture.
A well maintained lamp temperature extends the lumen maintenance, color temperature and life of a lamp.
The BarFly uses a removable “twist-on” Center Mount with baby receiver. The universal mount has been a success in our 4Bank, Double and Single series and the Vista Single. The locking pin mechanism snaps into place with a simple twist. The center mount design enables unrestricted orientation allowing the beam to be angled in many directions. It’s the same effect as rotating a barndoor on a Fresnel. Other optional mounts and lollipops with baby receivers (16mm) or 3/8” straight pins (10mm) are interchangeable for further flexibility.
Cost savings attributed to fluorescents cover a broad range of concerns:
Energy Savings Calculations
- Low energy costs
- Less heat so lower air-conditioning expenses
- No gel replacements because of low heat
- Fewer lamp replacements due to longer lamp life
- Lamp replacement labor reduced by a factor of 10
With the push for reducing fossil fuel consumption, TV studios are looking at cooler more efficient lighting systems to reduce the costs and save energy. Part of this process involves generating energy values to determine savings.
One of the most important values is Btu/kWh.British Thermal Units per Kilowatt Hour
Any light generates a percentage of usable light and the rest in heat. For example, a standard incandescent light bulb converts only 11 percent of its electrical input into visible light, while the rest is dissipated directly as heat. There are energy costs involved in cooling the studio environment. The measure of Btu/kWh is a means of calculating the thermal loads related to operating lighting.
Use the following information to calculate Btu/kWh Watts to Btu:
1 kWh = 3413 Btu/Hr
1 Watt = 3.413 Btu/Hr
3.413 Btu per Watt-hour