Kelvin Epos 300 User manual

English Version V1.0May1,2023
Epos 300 User Manual www.kelvinlight.com
Epos 300
User Manual
English

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Epos 300 User Manual www.kelvinlight.com
Epos 300 user manual
1.0 Table of contents
2.0 Introduction (Features, Properties)
3.0 Precautions
4.0 Overview
5.0 Setting up Epos 300
5.1 Attaching the Tilt Lock Handle
5.2 Mounting the Epos 300 to a Light Stand
5.3 Powering the Epos 300
6.0 User interface
6.1 User interface overview
6.2 Main menu
6.3 Settings
7.0 Intensity and Modes
8.0 DMX
9.0 Software & firmware
10.0 Warnings & specifications
11.0 3 Years Keep Rolling Warranty
12.0 Trademarks
13.0 Approved Accessories
13.1 Bowens Mount
13.2 Kelvin modifiers
13.3 Other modifiers
14.0 Wireless Communication

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2.0 Introduction
Epos 300
The Kelvin Epos 300 is an RGBACL LED COB studio light with full color spectrum for professional use in the film
industry. The lighting technology developed by Rift Labs enables especially high accuracy and quality of the light
emitted across the full color spectrum, giving the users a much more predictable and continuous quality in their
creative use. The technology is combined with high attention to user and customer experience in usability and
digital/physical UX, exceeding market standards. It is designed and constructed for longevity in a rough working
environment. Made to withstand life on set and beyond.
2.1 Features
The Kelvin Epos 300 provides lighting to professionals with a minimal environmental footprint. All lamps are LED-
based, ensuring a low and efficient power consumption, with maximum light output per watt. Most of the casing
assembly is made from highly recyclable materials. A reliable and lasting quality gives the product a much more
sustainable footprint. Combined with high efficiency and sustainable solutions in manufacturing, logistics, and
packaging, the Kelvin Epos 300 is a high-performance product made in Norway.
2.2 Properties
Due to the unique Cantastoria Light Engine, a predictable continuity of light across the full color spectrum is
guaranteed, and the light intensity is highly precise and controllable to an accuracy of 0.01%. The light and build
quality exceed industry standards and solves a major challenge of life on set: It is durable, sturdy, yet compact. The
materials make it sturdy; the design and the construction make it strong. And the form is not just beautiful, but
allows the light to be stored vertically, horizontally or in any way needed, without endangering the elaborate
electronics within. We believe The Epos 300 has any expectations in its segment. We further aim to elevate
industrial design standards and attention to detail in the film light industry, with a design conveying the main values
of Kelvin - precision, sturdiness, usability, and accessibility.
2.3 Idea
To creators, cinematographers, photographers, studios, and filmmakers, light is essential to define and set the
ambiance for a set scene. It makes the difference between a good story and great visual storytelling. In addition to
providing a high-quality light, smooth usability is core to be efficient and making the best use of valuable time on
set. The Epos 300 is designed to address usability and efficiency in use, providing a fully compatible app for iOS
and Android –Kelvin Narrator - to control the lighting unit via Bluetooth, in addition to its touch screen and buttons.
Seamless integration of a full lighting kit on set is possible, whether controlled with a touch of a finger on a phone or
the individual control units of the lights. Equally, reliability and power requirements are key factors addressed
through dedicated design and engineering.
2.4 Form
Electronics and lamps are delicate components requiring sturdy casing to prevent damage from impacts caused by
drops, rough use, exposure of weather and rough conditions. The design of the Epos 300 is developed to
communicate the impact of a high-tech precision device, while being robust, reliable, and practical. An innate
simplicity also reflects the efficiency of a modular production, smart logistics and the ability to be recycled.
Extended use of aluminium allows a sturdy construction, which is also easy to recycle, long-lasting and a superior
protective case for its sensitive electronics within.
2.5 Function
One of the benefits that advocate the Epos 300 is the separation of the light head and the light control unit. The
light may be controlled remotely from the Bluetooth, Kelvin Narrator App for iOS/Android, DMX, Lumen
Radio/Wireless DMX (built-in) or from the separate control unit, which is operable free standing or suspended from
a vertical support. The light unit can thus be fixed remotely and in out of reach positions. The front of the lamp has a
Bowens mount for various accessories that modify the light.
3.0 Precautions (Important for your safety)
Epos 300
The light fixture is used for professional lighting. The lighting system and accessories must be used by professional
or trained personnel. All operations must follow the relevant safety instructions:
1. All instructions must be read and understood before use, including the transport,

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installation, and operation of the equipment;
2. The weight of the lamp head and light accessories must be considered when handling and lifting;
3. Check all cable connections before using. Make sure all cables are appropriately labelled to prevent tripping;
4. In case the cables and wires are damaged, it must be replaced with the same kind of cables and wires;
5. In case the light source is damaged, it can only be serviced by an authorized Kelvin service centre or authorized
Kelvin service personnel;
6. The lamp head may reach elevated temperatures when operating. To prevent burns, staff must operate carefully
when touching the lamp body. It is recommended to wear appropriate protective devices;
7. Be alert to fire and burn hazards and do not place flammable materials and objects in front of the lamp;
8. Make a full inspection of the lamp head electrical connection, safety isolation, and insulation protection before
using;
9. To prevent overheating, do not block or cover the light head vents;
10. Do not operate the lamp head when the light ventilation is closed or covered, or when protective cap mounted,
as this may cause overheating;
11. Before each usage, make a visual inspection. Ensure regular electrical inspection at least every 6 months.
Record the results in an archive;
12. Operating in an explosive environment is prohibited;
13. Do not use the equipment in a humid or dusty environment, which may cause short circuits and the risk of
electric shock;
14. Do not operate damaged equipment until an authorized professional service personnel has checked it;
15. The lamp head and accessories must be safely connected or secured to prevent falling;
16. Before cleaning, or doing maintenance or repair, the product must be shut down and the power cable must
be removed from the power outlet;
17. Do not immerse the lamp head in water or other liquids as this may cause damage to equipment and risk of
electric shock;
18. When repair or service is required, do not remove or open the lamp head on your own, as this will void the
warranty. The product must be handed over to designated qualified maintenance personnel. Incorrect removal may
damage the equipment or even cause electric shock when re-using;
19. Do not place cables, plugs, and contact parts in water as this may cause a risk of electric shock;
20. Radiation and glare from the head of the lamp can cause damage to people and animals (e.g. sunburn,
impaired vision). Within the minimum distance (2.5m) specified in the equipment and operating instructions,
exposure to the beam for a prolonged period has a risk of serious injury and potential blindness;
21. Do not use non-recommended batteries, cables, and other accessories, as this may damage the equipment,
or even cause fire or electric shock;
22. When maintenance or service is required, you must contact designated authorized maintenance personnel. Any
malfunction caused by unauthorized self-removal is not within the scope of the repair, and will void the warranty;
23. Make sure that the lamp head and controller has all necessary protection to ensure safe operation, such as
making sure the unit is placed in weatherproof positions, under protective roofs, and ensure that airflow around the
headlights is unrestricted;
24. Check and make sure that the weight of the lamp head, accessories, and cables is lower than the maximum
safety load of the light bracket;
25. When the lamp head is fixed on the light bracket, the mounting screws must be tightened, and make sure the
bracket itself is balanced to prevent falls which may damage the equipment and threaten personal safety;
26. This product is certified FCC, CE, RoHS, UKCA, IC, KC, NCC, PSE, BIS, UL. Please strictly refer to the
relevant national standards for operation and use. Incorrect use causes damage to the equipment and is not
covered by the product warranty.
27. Limitation of Liability. Under no circumstances shall the company, its subsidiaries, brands or its affiliates,
partners, suppliers or licensors be liable for any indirect, incidental, consequential, special or exemplary damages
arising out of or in connection with your access or use of the product, any errors in the material, or omission of
information, and any third-party content and services, whether or not the damages where foreseeable and whether
or not company was advised of the possibility of such damages. Without limiting the generality of the foregoing,
company’s aggregate liability to you (whether under contract, tort statute or otherwise) shall not exceed the amount
of one dollar. The foregoing limitations shall apply even if the above stated remedy fails its essential purpose.

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FCC Compliance Statement
WARNING
Changes or modifications not expressly approved by Kelvin or an authorized service partner will void the
warranty.
NOTICE 1
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part
15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in
a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation.
NOTICE 2
If the equipment causes harmful interference to radio or television reception, which can be determined by turning
the equipment off and on, the user is encouraged to try reorienting or relocating the receiving antenna by:
• Increasing the separation between the equipment and receiver.
• Connecting the equipment to an outlet on a different circuit than the receiver is connected to.
• Consulting the dealer or an experienced radio/TV technician for help.
NOTICE 3
This device has been evaluated to meet general RF exposure requirements.
4. Overview
Epos 300
Make sure you have all items listed below before using.
Note that there may be variations due to continuously product development and releases of new versions, please
refer the product itself.

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Details
5. Setting up the Epos 300
Epos 300
5.1 Use of Protective Cap
To get started using the Epos 300, please remove protection cap. Always remove the cap before turning the light
on and always mount the cap back after use when you are packing the light away to ensure your light stays

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protected.
5.2 Use of Bowens Mount Reflector
Start installing the Bowens Mount reflector by inserting the reflector into the Bowens mount and rotate it counter-
clockwise. Click the release button and rotate the reflector clockwise to release.
5.3 Attaching the Tilt Lock Handle
The tilt lock handle can be attached to either side of the Epos 300. To attach the handle, follow these steps:
1. Place the Epos 300 and yoke face down on a flat surface.
2. Use the correct hex key to remove one of the tilt control screws and replace it with the tilt lock handle. Screw
in the handle so the threads are engaged, but don’t tighten it.
3. Use the hex key to tighten the control screw on the other side of the yoke. Tighten it enough until there is
some resistance while tilting the Epos 300 in the yoke.
4. Tighten the handle until the yoke is locked and secure.
Note: If the yoke seems too loose when the tilt lock handle is disengaged, use the hex key to slightly tighten the
control screw opposite the handle.

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5.3 Mounting the Epos 300 to a Light Stand / Bracket
Loosen the mounting lock and place the receiver over the light stand’s 5/8-inch pin (Baby Pin). Tighten the handle
until secured with the mounting screw on the Baby Pin Receiver.
Junior Pin also works fine (28mm stand). Get started by mounting the Lamp Head into the Junior Pin receiver and
adjust it smooth in place with the handle on the stand.
Adjust the angle of the light by using the lock mechanism on the Yoke to tilt the fixture into your preferred position.
Note: If you’re unable to turn the tilt lock handle 360°, pull the handle out, reposition it, and push it back in until it
reengages.

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5.4 Connecting Lamp Head and Controller
Use the 4-pin XLR head cable to connect the Lamp Head Fixture with the Controller.
See illustration below.
5.5
Powering the Epos 300
AC Power
1. Connect the 4-pin XLR cable to the power supply and the Epos 300.
2. Connect the AC cable to the power supply and a power outlet.
Battery Power
1. Connect the 4-pin XLR cable to the power supply and the Epos 300 controller.
2. Slide a battery into the power supply’s battery plate until it locks into place.
To remove the battery, press the battery release, and slide it off the plate.
Important! If the power supply is connected to both a 26 V battery and an AC power source, the
power supply will draw from the 26 V battery instead of the AC power. To preserve battery life, connect a 26 V
battery to the power supply only when you intend to use it.

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5.6 Turn ON and OFF
After achieving power, push the power button on the side of the controller to turn the light ON and OFF.
6.0 User interface
Epos 300

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Epos 300 User Manual www.kelvinlight.com
6.1 User interface overview
The function dials implement the action or access the menu indicated on the LCD screen
next to the button.
1. Left Dial: Intensity, Dimming, Menu
In all operation modes, the Intensity dial adjusts to the intensity from 100% to 0% in 0.1% increments.
In all operation modes, press the Intensity dial to toggle between the set intensity and 0%.
2. Middle Dial: CCT, CCT preset
3. Right Dial: Tint, Toggle parameter, Menu line
4. Mode Menu (on touch screen)
Select modes by selecting from the menu on the top left corner of the screen to choose: CCT, HSI, Gel, RGB, XY,
Effects.

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6.2 Main menu
The main menu is for navigating between light modes, effects, and settings. To enter the menu screen, press the
top left button.
Knob interface:
-Right knob turning, steps through the available modes and settings buttons. Currently selected button has
its button name highlighted.
-Right knob press, enter the mode/settings.
-Left knob turning, adjusts the intensity.
-Left knob short press, toggles the light output between current intensity and no intensity.
-Left knob long press, toggles stable between stable and maximum light output. (See Modes and Intensity
section for more information.)
Touch interface:
-Menu button, return to the previous light mode.
-Mode buttons, enter the respective mode.
-Settings button, enter the Epos settings.

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6.3 Settings
Category navigation:
-On the left side of the settings screen are navigation buttons for selecting the wanted category.
Categories:
1. About:
oDisplays the serial number of the Controller
oDisplays the firmware version of the Controller
oDisplays the serial number of the Lamp Head
▪N/A if no lamp head is connected or bad communication
oDisplays the firmware version of the Lamp Head
▪N/A if no lamp head is connected or bad communication
2. Bluetooth:
oSetting the Bluetooth ON or OFF
3. DMX
oSetting the Controller to Slave/client or Master/host mode
▪In slave mode the controller responds to DMX messages from other hosts
▪In master mode the controller generates DMX messages and sends them to connected
slaves (wired and/or wirelessly)
oChoosing which profile to receive or send
▪The DMX protocol/profiles are described in a separate document

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▪Some profiles are disabled in Master mode
oChoosing which DMX address is used for receiving of sending DMX commands
▪The profile and address need to match for an Epos Controller (or DMX board) to command
another Epos controller
oChoose dropout mode to define the behavior of the Controller if the controller loses connection with
the master.
▪Is only available if the Controller is in Slave mode
▪Option 1, remain on event if the connection is lost.
▪Option 2, turn off the light output if the connection is lost.
▪Option 3, turn off the light after n seconds if the connection is lost (typically used to ignore
unintended message drops due to noisy connections or similar…)
oChoose the number of seconds to wait until the light output should turn off when DMX
communication is lost
▪Only available the Dropout mode is set to option 3.
o(Page 2, CRMX) Lumen radio (CRMX radio) mode, choose to turn on or off the lumen radio.
o(Page 2, CRMX) Button to link or unlink from wireless CRMX slave or master
4. Display:
oChoose the brightness of the display
oChoose the idle mode
▪Option 1, Always on
▪Option 2, Dim display to the selected brightness
oChoose dimming brightness
▪Only available if idle mode option 2 is selected
oChoose the number of seconds to wait before the display is dimmed
▪Only available if idle mode option 2 is selected
5. Lamp head:
oChoose the fan mode of the lamp head
▪Option 1, Silent –the cooling fan is running very low or turned off
▪Option 2, Quiet –the cooling fan is running at up to half speed
▪Option 3, Regular –the cooling fan is running at up to 70%
▪Option 4, High –the cooling fan can run at full speed, if needed
▪In this mode the max light output is reduced to 25% in order to protect the lamp head from
overheating
oRunning in silent or quiet mode reduces the max light output in order to protect the lamp head from
overheating.
7.0 Intensity and Modes
Epos 300

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7.1 Intensity
The light intensity can be controlled via Bluetooth using the Kelvin Narrator App for iOS/Android, wired DMX,
Lumen Radio/Wireless DMX (built-in) or from the separate control unit. The left knob on the controller is dedicated
to light intensity throughout, while the intensity touch slider is available on operating screens such as CCT, HSI,
Gel, XY and Effects.
The output light intensity can be controlled in two different modes: stable and maximum. Stable intensity caps the
max light output to be equally bright across all color mixing possibilities for the specific mode being used. Maximum
intensity removes the light output cap and allows max brightness for the exact color mix.
Knob control:
1. Twist the knob to increase or decrease the light intensity.
2. Short press the knob to dim the light between 0% and the current light intensity. Adjusting the intensity after
the light has been dimmed will reset the current light intensity.
3. Long press the knob to toggle between stable and maximum light output.
Touch control:
1. Slider adjusts the output light intensity.
2. Stability button (next to the intensity indicator) toggles between stable and maximum light output.
7.2 Mode CCT
CCT mode is used for setting the white light output using color temperature and tint (green-magenta). The Epos
300 allows the user to choose between two CCT ranges, regular range (2800-10000K) and extended range (2000-
20000K).
Knob control:
-Turn the middle knob to adjust the color temperature.
-Turn the right knob to adjust the tint.
-Press the right knob to reset the tint to neutral (0.0).
Touch control:
-Sliders adjust the color temperature and tint.
-Range button (above CCT slider) toggles between regular and extended color temperature range.
-Preset buttons (below the CCT slider) sets the color temperature to preset temperature points, candle

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(3200K), daylight (5600K) and cloudy (7200K).
-Neutral button (next to the tint slider) resets the tint point to neutral (0.0 Δuv).
7.3 Mode HIS
HSI mode is used for setting the light output with hue and saturation. The white point of the HSI mode can be set to
either standardized color spaces (S RGB, Adobe 1988, Adobe Wide or Pro Photo) or to the color space of the Epos
300 (Device). When device color space is selected, the white point can be further adjusted.
Knob control:
-Turn the middle knob to adjust the hue in degrees (0O-360O) and loop back around if the endpoints are
exceeded.
-Press the right knob to toggle between adjusting the saturation or the white point (only if device color space
is selected). Parameter labels turn yellow to indicate which parameter is selected for adjustment.
-Turn the right knob to adjust the saturation (by default) or the white point if selected.
Touch control:
-Pressing/dragging the HSI color map adjusts the hue (horizontally) and saturation (vertically).
-Color space dropdown selects color space (Device, S RGB, Adobe 1988, Adobe Wide or Pro Photo).
-The white point slider adjusts the white point if device color space is selected.
7.4 Mode RGB

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RGB mode is used to set the light output by adjusting the red, green, and blue channels (0-255). As in HSI mode,
the white point of the light output can be adjusted to standardized color spaces or the device color space.
Knob control:
-Turn the middle knob to select a color parameter to adjust (red, green, or blue). The selected parameter is
indicated with the relative label color turning yellow.
-Turn the right knob to adjust the selected color parameter (by default) or the white point if enabled and
selected.
-Press the right knob to toggle between adjusting the selected color parameter or the white point if the device
color space is set.
Touch control:
-Color sliders adjust the respective colors.
-Color space dropdown selects the color space.
-White point slider adjusts the white point (if device color space is selected).
7.5 Mode XY

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XY mode is used to set the light output by adjusting the x and y coordinates in the CIE-1931 diagram. The valid
coordinate area is indicated with the white border and is unique for each lamp head. By default, the area is set to
some arbitrary value and is then updated once a lamp head is detected.
Knob control:
-Middle knob turn adjusts the X parameter (horizontally).
-Right knob turn adjusts the Y parameter (vertically).
Touch control:
Pressing/dragging on the CIE-1931 diagram adjusts the X and Y parameters.
7.6 Mode Gel

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Gel mode sets the light output by combining a filter from the library and the color temperature. The Epos has gels
available from the gel brands Rosco and Lee.
Knob control:
-Middle knob turn selects gels in the selected brand category. Stepping beyond the visible gels will load the
previous/next page of gels within the same category.
-Right knob turn adjusts the color temperature.
Touch control:
-Pressing one of the gels on the list selects the gel for output.
-Pressing the up/down buttons loads previous/next gel page of the selected category. The indicator between
the buttons shows the current page number and the number of pages within the selected category.
-Brand dropdown selects brand.
-Category dropdown selects the category within the selected brand.
-Temperature slider sets the color temperature.
7.7 Mode Effect