Overview
The Ulanzi L023 40W Bi-Color Pro COB Fill Light is a compact, palm-sized LED video light designed for powerful on-the-go illumination. Delivering up to 50W in Overclock Mode, it offers flexible bi-color performance, fast charging, and a durable built-in battery system.
Core Features
- 40W bi-color COB LED output
- Overclock mode boosts output to 50W
- Palm-sized portable design
- Built-in 3400 mAh battery
- Up to 180 minutes runtime at low brightness
- Fast PD charging via Type-C
Lighting Performance
Color Control
Adjustable bi-color temperature from 2500K to 6500K with smooth dimming from 0 to 100%.
Illumination Output
Produces up to 13,150 lux at 0.5 m (with reflector) and features a wide 120° beam angle suited for fill lighting and cinematic effects.
FX Modes
Includes 8 creative lighting effects for versatile shooting environments.
Battery & Charging
Battery Capacity
Equipped with a 14.8V / 3400 mAh (50.3 Wh) internal battery offering up to 50 minutes at 50W and over 70 minutes at 40W.
Charging Options
Supports DC 19V/3.4A and 65W USB-C PD fast charging with a full recharge time of approximately 3 hours.
Mounting & Accessories
Features a 1/4"-20 threaded mount for handheld or stand mounting. Includes a mini diffuser that attaches via a mini Bowens interface.
General
| Model | L023 40W Pro |
| Dimensions (without reflector) | 10.5 × 8.5 × 8.5 cm |
| Weight (without reflector) | 490 g |
| Lamp Beads | Bi-color COB lamp bead |
| Color Rendering Index (CRI) | ≥ 95 |
| Beam Angle | 120° |
Lighting
| Color Temperature Range | 2500K – 6500K |
| Lumen Output (with reflector) | 13,150 lux at 0.5 m |
| Normal Output Power | 40 W |
| Max Output Power (Overclock) | 50 W |
Battery & Runtime
| Battery Capacity | 14.8V / 3400 mAh (50.3 Wh) |
| Runtime at 50W | 50 min |
| Runtime at 40W | ≥ 70 min |
| Minimum Brightness Runtime | ≥ 180 min |
| Charging Time | Approx. 3 hours |
Charging & Connectivity
| Charging Ports | DC 19V/3.4A, USB-C PD 65W |
What's Included
- Ulanzi L023 40W Bi-Color Pro COB Fill Light (Black)
- Reflector
- Diffusion Dome
- Velvet Bag
- Barcode: 87692
- UPC Barcode: 6975357301886
- Supplier Code: L023