Ulanzi 40W PRO COB Lamp Bi-Color with battery & USB-C - up to 50W

The Ulanzi 40W PRO is a compact COB light that combines strong light output with a handy size for video and photo creators. This light features a built-in battery and offers flexible USB-C power supply options, making it suitable for both indoor and outdoor use. With the ability to adjust the color temperature and increase the power, you always have the right amount of light at hand.

Lots of light from a small design

This lamp is small enough to hold in one hand, yet delivers a very strong light output of 13,150 Lux. Thanks to its compact size and low weight of less than half a kilo, you can easily take the lamp with you to any location. This makes it a good choice for both studio setups and on-location shoots where space is limited.

More power with the overclock mode

For normal use, the lamp delivers a stable output of 40W, which is sufficient for most video and photo situations. Should you temporarily need more light, you can switch to overclock mode, which increases the power to 50W. This feature provides extra brightness exactly when your situation calls for it.

Natural colors and adjustable light

The lamp has a high CRI value of 95, which means that colors on screen are displayed very naturally and accurately. You can easily adjust the color temperature from warm yellow light (2500K) to bright white daylight (6500K). This ensures the light always matches the ambient light or the atmosphere you want to create.

Use with battery or via cable

Thanks to the built-in battery, you can use the lamp wirelessly, which is handy when there is no power outlet nearby. The battery lasts up to 3 hours at low usage, and for longer sessions, you can connect the lamp to an adapter or a power bank via USB-C PD 65W. You can also continue using the lamp while it is charging.

Ulanzi 40W PRO COB Lamp Specifications

• Package contents: 40W Pro, Reflector, Diffusion dome, Storage bag, Manual
• Battery life: 3 hours (minimum brightness) / 50 min (50W) / 70 min (40W)
• Charging time: ±3 hours
• Lux output: 13,150 Lux
• Material: Aluminum
• Dimensions: 8.5 x 10.5 x 8.5 cm
• CRI value: 95
• Power: 40W, 50W (overclock mode)
• Color temperature: 2500K – 6500K
• Weight: 0.490 kg
• Color: Black
• Brand: Ulanzi
• Model: 40W-PRO
• Warranty: 2 years