Kino Flo's new Tegra 4Bank redefines the evolution of light by combining
the Academy-award winning features of the 4ft 4Bank portable system
with
onboard control features of the Diva-Lite 401.
No other light features onboard dimming, onboard switching, remote
hand-held dimming, and Universal input voltage (100VAC to 240VAC). Proprietary solid state electronics operate the lamps on high output,
flicker-free, and dead quiet.
The fixture produces as much light as a 1,000W tungsten softlight, using only one tenth the amount of power. The built-in barndoors with newly designed hinges, honeycomb louver and center mount system make the lightweight
Tegra ideal for hand-held shots, rigging in tight locations or mounting on a
light stand.
The fixture takes 2900K, 3200K and 5500K True Match® lamps that
display
a full range of high color rendering soft light.
• Center Mount
• Reflector
• Louver
• True Match® daylight and
tungsten balanced lamps
Detail Of Features
More Information
Tegra 4Bank Highlights
• Fixture includes Center Mount, Louver and built-in barndoors • All-in-one design with built-in dimming ballast • High Output, flicker-free • 4-Lamp individual lamp switching • Remote dimming capability • Universal voltage with auto-sensing power supply can be used anywhere in the world • Newly designed hinges for barndoors • Same fixture uses daylight or tungsten lamps • Full spectrum (CRI 95) lamps available in 3 color temperatures: 2900K, 3200K and 5500K • Visual effects lamps available in 420nm blue, 525nm green for blue & green screen application • Low amperage draw at 2.8A/120VAC, 1.4A/230VAC • Mounts to a stand or grid
Kits
Tegra 4Bank Kits
KIT-T4-120U Tegra 4Bank Kit, 120U
KIT-T4B-120U Tegra 4Bank Kit w/ Soft Case, 120U
KIT-T4-230U Tegra 4Bank Kit, 230U
KIT-T4B-230U Tegra 4Bank Kit w/ Soft Case, 230U
Contents 1 Tegra 4Bank
1 Louver, 90°
1 Flozier, Half
1 Lamp Case
1 Travel Case
Contents 1 Tegra 4Bank
1 Louver, 90°
1 Flozier, Half
1 Lamp Case
1 Soft Case
Dimensions 54 x 8.5 x 21”
(137 x 21.5 x 53cm)
Weight
39 lb (17.7kg)
Dimensions 53.5 x 7 x 18”
(136 x 18 x 46cm)
Weight
22.5 lb (10.2kg)
Tegra 4Bank Universal
The Tegra 4Bank is a broad, soft light source ideally suited for television and
film quick shooting styles. The Tegra 4Bank produces
a soft, diffused, beauty light without the use of a bounce card.
The onboard dimming ballast is high output and offers individual lamp switching without any color shift. Dimming is also available
with the use of a hand-held remote dimmer. The louver and built-in barndoors
provide additional light control. With its universal power supply, the versatile
Tegra 4Bank can be used anywhere in the world.
The Tegra 4Bank includes a center mount, honeycomb louver, reflector and built-in barndoors with newly designed hinges.
Its
all-in-one lightweight design is cool to the touch and can be mounted to a stand or hung from a grid.
The Tegra 4Bank operates on 4ft T12 True Match® lamps (CRI 95) available in tungsten and daylight balanced lamps, (KF29, KF32 and KF55). Kino Flo visual effects lamps in 420nm blue for blue screen and 525nm green for green screen application are also available.
Tegra 4Bank Fixture
The Tegra 4Bank Fixture houses the lamps and includes a built-in Reflector and Harness,
removable Honeycomb Louver and center mount with a baby receiver lollipop.
The built-in harness is color coded. The same color-code must match at each end of the lamp for proper
operation.
Light Control
Honeycomb Louver
The Tegra 4Bank Fixture includes a 90° Honeycomb Louver (LVR-G490).
It is attached to the fixture with Velcro fasteners. The Kino Flo specially designed metal foil Honeycomb Louver controls and focuses the light which narrows the light spread with minimal light loss. A 60° Louver (LVR-G460) is also available as an accessory.
BatWing Louver
Another light control option is the BatWing®.
The BatWing Louver attaches directly to the lamps and gives direction to the light with minimal light loss.
BAT-W4
Flozier
The Tegra 4Bank produces a broad soft light. The built-in barndoors can open to broaden the light. For additional softness, a Flozier may be used. The Flozier is cloth material that slips over the front of the fixture and provides
a large area of white diffusion. The resulting larger area of diffusion further softens the light.
This is especially useful when dealing with reflective subject matter as a means of diffusing the reflection of the
lamps in the fixture. The harshness of lamp reflections in glasses is easily avoided.
The Flozier is attached by stretching the two elastic cords around each end of the fixture.
The Flozier is available in two densities, full and half (DFS-4804, DFS-4804-H).
Note: The louver should be removed before applying the Flozier.
Mounting
The Center Mount includes a ball and socket design with a lock down handle. It allows unrestricted fixture
orientation and keeps the fixture lightweight. The fixture can operate in either a horizontal or vertical position.
It is easily rigged on the end of a grip arm to allow positioning off camera as a key or back light for interviews.
At the other end of the Center Mount is a baby receiver (16mm) that can go directly onto a light stand.
Example of the Tegra 4Bank rigged into a mafer clamp with baby pin.
Note: The eyelet next to the mount is used as a safety point.
Note: Lollipops are interchangeable.
MTP-LB MTP-L
MTP-LBS
Kino 41 Lollipop w/ Baby Receiver (16mm)
Kino 41 Lollipop w/ 3/8” Pin (10mm)
Kino 41 Lollipop w/ Baby Receiver Short (16mm)
MTP-B41F
The Kino Offset w/ Baby Receiver MTP-B41F (sold separately) can be used to
center the weight and balance of the fixture on the stand.
The offset receiver can also be used to under hang the fixture.
Example of the baby offset arm centering the weight of the fixture over a light stand or being used as
an “up” light.
Electronic Ballast
The onboard ballast is designed to provide flicker-free operation. The built-in universal power supply has an auto-sensing voltage regulator so it can be plugged into voltage ranging from 100VAC-240VAC.
The Tegra 4Bank features a built-in dimmer control. Lamps can dim from 100% down to 5%. However, it is recommended that the dimmer be used to adjust exposure levels within one f-stop. If dimmed beyond one f-stop, the color may drift towards the magenta spectrum.
To adjust for lower light levels, the Tegra is equipped with four individual lamp switches. The combination of dimming and lamp switching gives you maximum light control without color shift.
The Tegra comes with a 15ft power cord with an in-line power switch.
DIM-5
The Remote Dimmer (DIM-5) is a useful accessory for controlling the light output when you can’t reach
the onboard dimmer
knob. When the remote dimmer is plugged into the fixture, the onboard dimmer is
automatically
disabled. The remote dimmer comes
with a 15ft extension cable.
Cases
The clamshell travel case (KAS-T4-C) is recommended for travel in small vehicles and production trucks. It has room for one fixture and a 6-Lamp carry case (KAS-C46).
KAS-T4-C
The soft case (BAG-401) is made out of lightweight fabric material. It has room for one fixture and a 6-Lamp carry case (KAS-C46).
BAG-401
The 6-Lamp carry case (KAS-C46) fits 6 spare lamps allowing an easy change out of color temperature. It fits inside the clamshell case (KAS-T4-C) and the soft case (BAG-401).
KAS-C46
The Lamps
Tegra 4Bank requires safety-coated lamps.
The Tegra 4Bank operates on Kino Flo’s True Match® daylight and tungsten lamps.
The 4ft T12 full spectrum
tungsten and daylight balanced lamps include KF29, KF32 and KF55. These specially formulated lamps rated at
CRI 95 are unique to Kino Flo as they display a broad, color correct soft light, creating a nearly shadowless
display
that drops off evenly. They are the only high color rendering fluorescent lamps made for the professional
film and
video industry. Visual effects lamps in 420nm blue for blue screen and 525nm green for green screen
applications
are also available.
Tegra 4Bank Advantages
Energy Efficiency
The Tegra 4Bank is an efficient soft light compared to conventional studio fixtures. The Tegra is about the same
light output as a 1K studio soft light. It draws only 2.8 amps at 120VAC compared to 8 amps on a studio fixture.
This is especially important when shooting on location and power availability is an issue. The low power draw is
also an advantage when operating on battery inverter power sources.
All-in-one Design
With its built-in ballast design, the Tegra 4Bank includes onboard dimming and onboard lamp control.
The Tegra 4Bank also comes with a 15ft extension cable with an in-line power switch. The Tegra incorporates
built-in barndoors with newly designed hinges. The all-in-one lightweight Tegra makes it ideal for
fast and
easy set ups.
Long Lamp Life
Lamp life of a 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.
True Match® Color Correct Lamps
True Match® lamps are 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 HMIs. This gives the camera 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
The physical heat of the lamp or the buildup of heat within the fixture will directly influence the
color temperature
and lumen performance and lamp life.
The Tegra 4Bank fixture design addresses these requirements:
• The reflector is vented in the back to increase airflow.
• The ends are open to minimize heat buildup.
• The lamps are properly spaced apart to maximize light output from the reflector and minimize heat buildup.
A well maintained lamp temperature extends the lumen maintenance, color temperature and life of a lamp.
Many manufacturers do not emphasize heat management as a critical design element. They place lamps so close
together that they heat each other up and never provide a stable temperature environment. A True Match® lamp
in a poorly ventilated fixture will not perform as well as in a Kino Flo fixture. We have seen customers of other
manufacturers buy True Match® lamps and wonder why the performance is not as good as in a Kino Flo fixture.
The answer is ventilation.
Center Mount
The Center Mount is more flexible than a conventional yoke. A yoke limits orientation on two axes, tilt and pan.
The ball center mount design enables the fixture to be oriented at any angle. An optional offset arm with
baby receiver (MTP-B41F) may be used to center the weight of the fixture on a stand or can be under slung and
used as
an "up" light.
Cost Savings
Cost savings attributed to fluorescents cover a broad range of concerns:
• 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
Energy Savings Calculations
With the push of reducing fossil fuel consumption, TV studios are looking at cooler, more efficient
lighting systems
to reduce costs and save energy. 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
