GVM-520S / GVM-672S Photography Light User Manual

Product Introduction

Welcome to the GVM-520S / GVM-672S. This product is specially designed for senior photography enthusiasts. It is suitable for live / outdoor / studio photography, and also for YouTube video shooting. The main features of the product are:

• Two-color temperature characteristic with stepless adjustment color range 3200K - 5600K, with hundreds of closely arranged LED bulbs, helps to restore and enrich the color of objects, providing you with natural and vivid shooting effect.
• LCD screen display and stable system, which can support 360° rotation and effectively control the light line. You can also install a folding and external soft light board to avoid redundant light and make the light softer. You can customize the control of fill light, so that you can easily shoot the desired results.

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.

Disclaimers

1. Before using this product, please read the instructions carefully and ensure you use the product correctly. Failure to obey the instructions and warnings may cause harm to yourself and others, or damage the product and surrounding items.
2. By using this product, you are deemed to have read the disclaimer and warning carefully, understood and acknowledged all the terms and contents of this statement, and agree to take full responsibility for the use of this product and any possible consequences.

Precautions

• Please use the matching power adapter or lithium battery with the same specification to power the product. Do not use a power adapter with a different output voltage.
• The product is not waterproof; please use it in a rainproof environment.
• The product is not anti-corrosion; therefore, do not let the product touch any corrosive liquid.
• When using the product, ensure it is placed firmly to prevent falling and damage.
• If the product will not be used for a long time, please switch off the power to reduce energy loss.

Product Details GVM-520S

• Brand: GVM
• Name: Photography light
• Type: Photography fill light
• Number: GVM-520S
• Number of light beads: 528
• Color-rendering Index: ≥97
• Color Temperature: 3200K—5600K
• Luminance: 18500lux/0.5m, 4200lux/1m
• Light Adjustment Method: Stepless adjustment
• Light angle of lamp bead: 45°
• Function / Characteristics: High color rendering index light beads, Joint control
• Power: 30W
• Power Supply Mode: DC input & Battery
• Voltage: AC:100-240V
• Power specification: DC15V/3A
• Battery Capacity: 7.4V-4400mAh*2 (to be purchased separately)
• Weight: 1.87KG
• Size (mm): 310x320x55
• Material: Aluminum alloy
• Heat Dissipation: Natural way
• Origin: Huizhou, China

Product Details GVM-672S

• Brand: GVM
• Name: Photography light
• Type: Photography fill light
• Number: GVM-672S
• Number of light beads: 672
• Color-rendering Index: ≥97
• Color Temperature: 3200K—5600K
• Luminance: 20000lux/0.5m, 4600lux/1m
• Light Adjustment Method: Stepless adjustment
• Light angle of lamp bead: 45°
• Function / Characteristics: High color rendering index light beads, Joint control
• Power: 40W
• Power Supply Mode: DC input & Battery
• Voltage: AC:100-240V
• Power specification: DC15V/3A
• Battery Capacity: 7.4V-4400mAh*2 (to be purchased separately)
• Weight: 1.9KG
• Size (mm): 310x320x55
• Material: Aluminum alloy
• Heat Dissipation: Natural way
• Origin: Huizhou, China

Product Structure Analysis

Diagram shows the components of the photography light:

• Angle fixing knob
• LED lamp beads
• External diffuser mounting screw hole
• Folding installation screw hole
• Soft light spot locking mouth
• Lamp rack interface
• Lamp holder fixing knob
• U-frame
• Cooling hole
• Battery tank
• Custom shortcut button area
• Adapter interface
• Color temperature adjusting knob
• LCD display screen
• Integrated control channel select button
• Mode button
• Power switch
• Brightness control knob

Installation Method

1. Step 1

   The lamp can be installed and fixed on the bracket by rotating the knob clockwise ?, and unloaded by rotating in the counterclockwise direction ↩️.

2. Step 2

   Insert the subdued light board from the top of the light panel.

   [Diagram: Light panel with an arrow indicating insertion of a diffuser panel from the top.]

3. Step 3

   Loosen the adjustment knobs on both sides of the U-bracket, adjust the angle of the panel as needed, and then tighten the adjustment knobs on both sides of the U-bracket.

   [Diagram: U-bracket with adjustment knobs being loosened, panel angle adjusted, and knobs tightened.]

4. Step 4: Power Supply Options

   There are two power supply modes to choose from:

   • Connect the power cord and adapter for power supply.
   • Purchase two suitable lithium batteries and use them for power supply. (Both battery cells must be plugged in to power).

   [Diagram: Shows battery installation slots and adapter interface.]

Installation of Barn Doors and External Diffuser

Light Control Barn Doors (to be purchased separately)

You can buy a set of light control barn doors to control the angle of light.

[Diagram: Shows barn doors being attached to the front of the light panel. An inset shows how to align the hinge with mounting holes and lock with a screw.]

External Soft-board (purchased separately)

Make the light softer and achieve the effect of a soft light box.

[Diagram: Shows the external diffuser and its support frame being attached to the light. An inset shows the diffuser support frame being attached to the light, aligning with screw holes, and locking with a screw.]

Description of Product Control Keys

[Diagram: Rear view of the GVM light showing numbered controls.]

• 1: DC15V power input interface
• 2: Power switch
• 3: Mode button (Modes include master mode and slave mode)
• 4: Channel addition and subtraction key (Adjust channel)
• 5: User defined shortcut key (Each button can be customized to store parameters)
• 6: Color temperature adjustment button (Adjust the color)
• 7: Brightness adjustment button (Adjust the brightness)
• 8: LCD screen (Display brightness, Color temperature, Mode, Channel value and other data)

Function Instruction & Instruction for Use

Mode Selection

Slightly press the mode button to shift mode. The modes include: Master, Slave.

• MODE Master: Brightness, color temperature, and channel can be adjusted. The brightness and color temperature of the same channel slave can also be adjusted simultaneously.
• MODE Slave: It can only adjust the channel. Master mode and slave mode can only be synchronously controlled by master mode under the condition that they are under the same channel.

Adjust CH (Channel): range 0~11

Set channel value using the channel addition and subtraction keys.

Adjust Brightness (BRG): range 10%~100%

In master mode, adjust lightness through the knob.

Adjust Color Temperature (CCT): range 3200K~5600K

In master mode, adjust color temperature through the knob.

Custom Shortcuts

There are 1, 2, 3, 4 custom shortcuts that can store four brightness and color temperature data. In Rotate mode, adjust the brightness and color temperature to the parameters you need to store, then press and hold the button for 3 seconds. "Collectde!" appears at the bottom of the screen to indicate successful storage. When the same button stores new parameters, the previously stored parameters are automatically deleted.

Multiple Units Controls (between photography lights)

Prepare two or more photography lights. Set one as master mode and the others as slave mode, and set the same channel value. This allows control of the lightness and color temperature of the slave machines by adjusting the knob of the master machine. It is also possible to connect the master machine.

Use and Preservation

• Do not place the product in a highly humid, strong electromagnetic field, direct sunlight, or high-temperature environment. If the product will not be used for a long time, disconnect the power and remove the battery.
• Clean: Before cleaning, disconnect the power plug. Use a damp cloth rather than any detergent or soluble liquid to avoid damaging the surface layer.
• Power: Ensure the power supply is within the demanded range, not too high or too low. Correctly load the battery to avoid damaging the machine.
• Repairing: If there is a fault or performance degradation, do not unpack the shell yourself to avoid damaging the machine and losing the right to maintenance. If a fault occurs, do not hesitate to contact GVM support.
• Accessories: Please use accessories provided by the manufacturer and approved ones to maximize performance.
• Guarantee: Do not modify the product, or you will lose the right to maintenance.

Troubleshooting

Packing List