Introduction
This manual provides detailed instructions for the safe and efficient operation of your VIJIM Ulanzi L023 40W Pro LED Video Light. Please read this manual thoroughly before use and retain it for future reference. This portable COB video light features a built-in 3400mAh battery, PD fast charging, adjustable bicolor temperature from 2500K-6000K, and 8 special lighting effects.
What's in the Box
Verify that all items listed below are included in your package:
- 40W Pro Light
- Reflector
- Diffusion Dome
- Velvet Bag
- User Manual
Note: The DC charger and PD Type-C charger need to be purchased separately.
Figure 1: Package Contents. Shows the 40W Pro Light, Reflector, Diffusion Dome, Velvet Bag, and User Manual. A note indicates the charger is sold separately.
Product Features
- Built-in 3400mAh Battery: Provides extended working hours without external power sources.
- Overlocking 50W Output: High brightness COB bead with uniform speed output, reaching up to 50W and 13150Lux illumination in overclocking mode.
- Dual Charging Options: Supports DC (20V/5A) charging and Type-C PD Fast Charging (up to 100W, requires 65W/20V adapter or above).
- Excellent Color Performance: Adjustable hue 2500K-6500K color temperature, 0-100% brightness (regular mode), 101-125% (overclocking mode), with TLCI 96+ and CRI 95+.
- Lightweight & Portable: Weighs only 490g, palm-sized for easy handheld operation and transport.
- 8 Lighting Effects: Includes Lightning, TV, Candlelight, Broken Bulb, Pulse Flash, Paparazzi, Emergency, and High-Low Beam for creative scene lighting.
Figure 2: 40W Pro vs. Standard 40W Light. Illustrates the enhanced features of the Pro model, including higher output and advanced charging.
Figure 3: Battery Life Overview. Details the operational duration of the light under different brightness settings.
Figure 4: Portability. Demonstrates the light's small size and lightweight design, making it easy to carry and operate with one hand.
Setup
1. Charging the Device
The L023 40W Pro LED Video Light features a built-in 3400mAh battery. It supports two charging methods:
- DC 20V/5A Charging: Use a compatible DC power adapter (sold separately).
- Type-C PD Fast Charging: Connect a Type-C PD charger (sold separately) with an output of 65W/20V or above. The device can be used while charging. Full charge takes approximately 3 hours.
Important: Ensure your Type-C charger and cable support PD 65W/20V or higher for optimal fast charging. Using an incompatible charger may result in slow charging or no charge.
Figure 5: Charging Methods. Illustrates the DC and Type-C charging ports and requirements.
2. Mounting the Light
The L023 40W Pro is designed for versatile mounting:
- 1/4" Screw Hole: A standard 1/4" threaded hole on the bottom allows direct mounting to tripods, light stands, or magic arms.
- Mini Bowens Mount: The light features a Mini Bowens Mount for attaching the included reflector and diffusion dome, or other compatible accessories.
- Direct Use: Its lightweight design (490g) allows for handheld use, or direct mounting on cameras and stabilizers using a 1/4" screw magic arm.
Figure 6: Versatile Usage Scenarios. Depicts the light being used handheld, camera-mounted, and on stands for different shooting needs.
Operating Instructions
1. Power On/Off
Locate the power switch on the device. Flip the switch to the "ON" position to power on the light. To power off, flip the switch to the "OFF" position.
2. Adjusting Color Temperature (CCT)
The L023 40W Pro offers a bicolor temperature range from 2500K (warm) to 6500K (cool). Use the "CCT/FX" knob to adjust the color temperature to your desired setting. Rotate the knob clockwise to increase the Kelvin value (cooler light) and counter-clockwise to decrease it (warmer light).
3. Adjusting Brightness (DIM/MAX)
Use the "DIM/MAX" knob to adjust the brightness. The brightness can be adjusted from 0% to 100% in regular mode. For increased output, long-press the "DIM/MAX" knob to enter overclocking mode, allowing brightness adjustment from 101% to 125% (up to 50W output).
Figure 7: Brightness and Color Temperature Adjustment. Illustrates the range of light customization.
4. Activating Lighting Effects (FX)
The light includes 8 preset lighting scene effects. Long-press the "CCT/FX" knob to switch into effect mode. Rotate the "CCT/FX" knob to cycle through the following effects:
- Lightning
- TV
- Candlelight
- Broken Bulb
- Pulse Flash
- Paparazzi
- Emergency
- High-Low Beam
Adjust the brightness of the effects using the "DIM/MAX" knob.
Figure 8: Special Lighting Effects. Displays the variety of creative lighting options available.
Maintenance
- Keep the device clean by wiping it with a soft, dry cloth.
- Avoid exposing the light to water, moisture, or extreme temperatures.
- Do not attempt to disassemble or repair the device yourself. Contact customer support for assistance.
- Store the light in the provided velvet bag when not in use to protect it from dust and scratches.
Troubleshooting
1. Light Not Turning On
- Ensure the battery is charged. Connect the light to a power source using either DC or Type-C PD charging.
- Verify the power switch is in the "ON" position.
2. Charging Issues
- If using Type-C PD charging, confirm your adapter and cable provide at least 65W/20V output.
- Check for any damage to the charging ports or cables.
3. Fan Noise
The light has a built-in fan for cooling. While designed to be quiet, some fan noise may be audible, especially during prolonged use at high brightness. Ensure the ventilation holes are not obstructed.
Specifications
| Model | L023-US6 |
| Output Power | 40W (Normal Mode), 50W (Overclock Mode) |
| Color Temperature | 2500K-6500K |
| Brightness Adjustment | 0-100% (Normal), 101-125% (Overclock) |
| CRI | 95+ |
| TLCI | 96+ |
| Illumination (6500K@125%, 1m) | 13150Lux (with reflector) |
| Battery Capacity | 14.8V / 3400mAh (50.3Wh) |
| Charging Time | Approx. 3 hours |
| Runtime (Max Brightness 50W) | ≥ 50 minutes |
| Runtime (Max Brightness 40W) | ≥ 70 minutes |
| Runtime (Min Brightness) | ≥ 180 minutes |
| Weight | 490g (without reflector) |
| Dimensions (L x W x H) | 8.5 x 8.5 x 10.5 cm (without reflector) |
| Connectivity Technology | DC/Type-C Port |
| Hardware Interface | USB 3.0 Type C |
Figure 9: Technical Specifications. Provides a comprehensive list of the light's technical data.
Official Product Videos
Video 1: Ulanzi L023 40W Pro LED Video Light For Video and Photography. This video demonstrates the features and applications of the light in various video and photography settings.
Warranty & Support
For warranty information or technical support, please refer to the official VIJIM website or contact their customer service directly. Keep your purchase receipt as proof of purchase for any warranty claims.
