Display: display current settings, modes and
Mode button: switch button for lighting mode
Menu : press this key to enter the button
Back button: press this key to return to the
Rotary knob ①: INT/SELECTOR/R,
multi-function coding knob, can be
adjusted by pressing or rotating to "select"
Rotary knob ②: CCT/HUE/G, multi-function
coding knob, can adjust the "color
Rotary knob ③: SAT/B, multi-function
coding rotary button, you can use the rotary
button to adjust "Saturation/blue"
Battery installation slot
AC input port
(batteries need to b e
pu rchased separately )
PRODUCT INTRODUCTION PRODUCT
Product Name: Photography Light
Product model: GVM-ST300R
Product Type: Photography fill light
Function/feature: LCD screen, high CRI lamp beads,
APP control, Bluetooth mesh
Number of lamp beads: 2 COB
LUX: Bare bulb 12000 lux/1m; Reflector 65000 lux/1m
Light dimming method: stepless dimming
Control Box weight: 2.3KG
Lamp Head size (mm): 290×212×123
Control Box size (mm): 164×180×298
Voltage: AC 100-240V 50/60Hz
Power supply mode: AC & battery (V-mount battery)
Cooling Method: Active Cooling
Product material: aluminum alloy + plastic
Place of Origin: Huizhou,China
Before using this product, please read the text carefully to ensure that the product
has been operated correctly. Failure to follow and do not follow the instructions and
warnings in this document may cause injury to you and the surrounding people,
and even damage the product or other surrounding items.
2. Once you use this product, you are deemed to have carefully read the disclaimer
and warning, understand and acknowledge all terms and contents of this statement,
and promise to take full responsibility for the use of this product and the possible
Do not place the product in high humidity, strong electromagnetic field,
direct sunlight, high temperature environment. If the product is not to be
used for a long time, disconnect the power supply.
Cleaning: Please unplug the power plug before cleaning. And use a damp
cloth instead of any detergent or soluble Liquid, so as not to damage the
Maintenance: If there is a malfunction or performance degradation,
please do not open the shell package by yourself to avoid damage the
machine has lost maintenance rights In the event of a malfunction,
please feel free to contact us, we Will do our best to solve the problem.
Accessories: Please use the accessories provided by the manufacturer
or approved accessory products in order to make thebest use of
Warranty: Do not modify the product, otherwise the right to repair will
Power supply: Ensure that the power supply is within the scope of use,
too high or too low will affect the work.
3. Design and specifications are subject to change without notice.
Press the MENU button to enter the menu setting page → turn the [Rotary
knob Rotary knob①] to select an item → press [ ①] Enter the project setting
interface → Set the parameters of the project by pressing or turning [Rotary
knob ①] → Press [BACK] to go to the previous menu
By adjusting the hue, saturation, and light intensity to
achieve the desired light effect.
By adjusting the light intensity and color temperature of the
white light to achieve the desired light effect.
The GEL mode offers an extensive color filter list,ROSCO
and LEE it provides,each of has 30 colors.The intensity
can be controlled as usual.
Press the [MODE key] to switch to the [CCT] mode → turn
the [Rotary knob ①] to adjust the intensity, and turn the
[Rotary knob ②] to adjust the color temperature.
Press [MODE key] to switch to [HSI] mode → turn [Rotary
knob ①].To adjust the intensity, turn the [Rotary knob ②]
to adjust the hue, turn the [Rotary knob ③].Adjust saturation.
Press the [MODE key] to switch to the [GEL] mode →
press the [Rotary knob ①] to enter the menu selection
→ turn the [Rotary knob ①] to select the [Rosco] menu
or the [LEE] menu → press the [Rotary knob ①] to
enter the selected menu → turn [Rotary knob ①] Select
the colorin the menu → press the [Rotary knob ①] to
enter the setting interface of the selected color → turn the
[Rotary knob ①] to adjust the intensity.
To achieve the desired light effect by adjusting the ratio of red/green/blue.
Press [MODE key] to switch to [RGB] mode → press [Rotary knob ①] to switch
[INT] adjustment / [RGB] adjustment.
In the light source matching mode, select a light source from the light source menu
to match the spectrum. There are 12 selectable light sources in total.
Press [MODE key] to switch to [SOURCE MATCHING]
mode → press [Rotary knob ①] to enter the menu →
rotate [Rotary knob ①] to select the light type → press
[Rotary knob ①] to enter this type of adjustment
interface → rotate [Rotary knob ①] Adjust the intensity.
White light effect mode, 8 white light effects can be selected.
Press [MODE] to switch to [WHITE EFFECT] mode →
turn [Rotary knob ①] to select light type → press [Rotary
knob ①] to enter this type of adjustment → turn [Rotary
knob ①] to adjust brightness, turn [Rotary knob ②] To
adjust the color temperature, turn the [Rotary knob ③]
Color effect mode, 4 optional color light effects.
Press [MODE key] to switch to [COLOR EFFECT] mode
→ Rotate[Rotary knob ①] Select the light type → press
[Rotary knob ①] to enter this type → Turn [Rotary knob
①] to adjust the intensity, turn [Rotary knob ②] to
adjust the saturation, turn the [Rotary knob ③] to
DIMMER CURVE: BLUETOOTH RESET:
When adjusting [RGB], turn the [Rotary knob ①] to adjust
the parameters of [R], the [Rotary knob ②] to adjust the
parameters of [G], and the [Rotary knob ③] to adjust the
[INT] When adjusting, turn the [Rotary knob ①] to adjust the intensity.
HSI MODE (H=hue, S=saturation, I=light intensity)
RGB MODE(R=RED,G=GREEN,B=BLUE)
DMX SETUP: Set DMX parameters, [address (001-512)] and mode 8bit,16bit
DIMMER CURVE: Set dimming curve [linear/logarithm/exponential/S curve]
LIGHT FREQUENCY: Set dimming frequency, adjustment range [15KHz-25KHz]
BLUETOOTH RESET: Select [YES/NO] for Bluetooth reset operation
FAN MODE:Select cooling fan mode, [Auto/Quiet/High]
DISPLAY SETUP: Set display backlight [Brightness (0~10)] and backlight display
mode [Always On/After 10s]
FACTORY RESET: Select [YES/NO] to restore factory settings
（Scan the QR code on the back of the manual to download the APP）
Check whether the device is
normally turned on and whether
it has been bound by another
Make sure the adapter is well
contacted with the power plug.
Use the product after charging
When using a lithium battery
to supply power, make sure
that the battery does not have
"low battery" protection.
Whether to remove the device
when the device is offline or
when the network condition is
After re setting t he de vice's
Bluetooth, search and add the
Check whether the device is
turned on normally and whether
it has been bound by another
p er s o n' s c o nn e ct i o n; c h ec k
w h e t he r t h e B l u e t o o th a n d
network conditions of the mobile
A f te r r e s et t i ng t h e d e v ic e ' s
Bluetooth and restarting the App,
The mobile phone turns on the
Bluetooth and network data
functions, and the Android
system needs to turn on the
Reset the device Bluetooth.
Check whether the device is
online (displays a small green
dot); if it is offline, follow the
steps for network connection
Restart the device, wait for 5
seconds, and it can be controlled
when it is displayed as online;
reset the device's Bluetooth, and
add the device to the device list
Product introduction Page 1- ---------------------------------------- --
Use and save Page 2-----------------------------------------------------
Disclaimers Page 2--------------------------------------------------------
Product parameter Page 3------ ------------ -- -------------- ---- --- ----
Product structure icon Page 4-------------------------- ------------- --
Installation method Page 5~8------------------------ ----- ------- ------
Description of product control keys Page 9------------ --------- --
Function introduction and instruction for use Page 10 12~----
APP control and APP on-line control Page 13~14------------- ---
Precautions Page 14------------------------------------------------------
Simple faults and troubleshooting Page 15------------------------
Packing list Page 16-------------------------------------------------------
GVM Email: support@gvmled.com
Amazon Email: amazonsupport@gvmled.com
Warehouse Add: 4301 N Delaware ave, unit D. PHILADELPHIA, PA19137, USA
This light has CCT and RGB two-sided light-emitting surfaces. Both sides cannot be lit
at the same time. One side is lit according to the mode and scene.
Ratcheting Disk Brake Handle
Bowens mount release latch
CCT mode: Bi-color light mode, adjustable light intensity and color temperature.
RGB mode: Adjustable red light, green light, blue light, and achieve 1.6 X 10 colors
Color light effect mode: color This mode provides 4 types of light effect: disco,
party, car, hue .cop loop
Bi-color light effect mode: This mode provides 8 white light effects: lightning, CCT
loop Bad pulsing, candle, bulb, TV, paparazzi, explosion, .
HSI mode: Adjustable hue, saturation, light intensity, ( HSI=hue, saturation, light
intensity ), realize 36 million colors adjustable.
Light source matching mode: This mode provides 12 different styles of light source
types to choose from. When you need a specific light source, it can save a lot of
We believe that once using our product correctly, you can make huge progress when
shooting. Before using the product, you are strongly recommended to read the
instructions below carefully.
GEL mode: The mode offers an extensive color filter list, ROSCO and LEE it
provides,each of has 30 colors.
⑤ 7 lighting modes, CCT mode, HSI mode, RGB mode, GEL color paper mode, light
source matching mode, light effect mode, light effect mode:white color
①Bi-color The light can be adjusted steplessly, with 1 lamp bead and 1 RGB lamp
bead, with color rendering index of 97+, which helps restore and enrich the colors of
objects, providing you with natural and vivid shooting effects.
② APP control, which can be controlled by your IOS and Android smart mobile devices;
at the same time, it supports Bluetooth mesh networking, which can be group
controlled with GVM brand devices that support mesh networking.
③ With standard DMX interface, it can realize low-precision 8bit and high-precision
④ It has a LCD screen display and stable system, supports 180°rotation, which can
effectively control the light. Equipped with a standard cover, after installation, it can
avoid excess light, make the light more concentrated, and customize the control to fill
the light, allowing you to shoot the desired results easily.
Welcome to use "GVM-ST300R". This product is specially designed for senior
photographers. The usage scenarios of the product are suitable for live broadcast /
outdoor / studio photography, etc., and can also be used for YouTube video shooting.
The main features of the product are:
2. When the light is off, press and hold
Power on/off button/Cooling button:
1. Long press when the light is on,Turn
off the lights and start the maximum
fan speed until the temperature
