Ulanzi L023 40W Pro is a compact bi-color COB LED light for video, photography and live streaming. It delivers 40W in normal operation, boosts up to 50W in Overclock mode, provides stepless brightness and 2500–6500K color-temperature control, and remains genuinely portable thanks to its integrated battery.
Ulanzi L023 40W Pro is a compact bi-color COB LED light for video, photography and live streaming. It delivers 40W in normal operation, boosts up to 50W in Overclock mode, provides stepless brightness and 2500–6500K color-temperature control, and remains genuinely portable thanks to its integrated battery.
A bi-colour COB LED light for video, photography and live streaming. It normally runs at 40 W, and Overclock mode briefly adds up to 50 W.

The L023 can serve as a key or fill light in a compact setup. With the supplied reflector it reaches up to 13,150 lx at a distance of 0.5 m.
Soft light with the diffusion dome.
Mini Bowens for shaping the light.
Built-in battery, 490 g.
Smooth dimming 0–100%.
In normal mode the light runs at 40 W. When you briefly need more light, Overclock mode raises the output up to 50 W. The beam angle is 120° and the CRI is 95 or higher.

Set brightness smoothly from 0 to 100% and colour temperature from a warm 2500 K to a cool 6500 K. The rear display and rotary controls give instant control of the settings. Eight preset lighting effects extend what you can do with creative scenes.
The integrated Mini Bowens mount quickly accepts the supplied reflector or diffusion dome. Adapt the light to an interview, product photography or a vlog. The 1/4"-20 thread allows mounting on a tripod, a holder or a pistol grip.

Without the reflector the light measures 10.5 × 8.5 × 8.5 cm and weighs only 490 g. It fits easily into a compact kit and can be hand-held for short periods.

The 14.8 V / 3400 mAh (50.3 Wh) battery runs up to 50 minutes at 50 W, at least 70 minutes at 40 W and up to 180 minutes at minimum brightness. Charge it through DC 19 V / 3.4 A or USB-C PD up to 65 W; a full charge takes about three hours. When powered and lit at the same time, output is limited to 40 W.
The Ulanzi L023 40W Pro is a compact bi-colour COB LED light for video, photography and live streaming. It delivers 40 W in normal operation and up to 50 W in Overclock mode, with smooth brightness and 2500–6500 K colour-temperature control, and remains genuinely portable thanks to its integrated battery. The Mini Bowens mount and 1/4"-20 thread let you use the reflector, the diffusion dome and common tripod accessories.
| Manufacturer: | Ulanzi |
| Category: | Portable lights |
| Light control | Onboard · Vestavěný stmívač |
| Type of light | Bi‑colour COB LED |
| Power (W) | 50Watt |
| Power supply type | Internal battery · USB-C · DC power |
| Battery type | Li‑ion |
| Battery voltage | 14.8V / 3400mAh (50.3Wh) |
| Color temperature | 2500-6500K |
| Flaps | No |
| DMX | No |
| CRI | 95 |
| Illuminance | 13150lx |
| Battery capacity | 3400mAh |
| Illuminance measuring distance | 0.5m |
| Number of light effects | 8 |
| Light mounting | 1/4"-20 thread · Mini Bowens |
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