Laowa Front LED Ring Light for 25mm f2.8

Its primary purpose is to provide even, diffused illumination for extreme close-up photography, specifically designed for the Laowa 25mm f2.8 Ultra-Macro lens, overcoming lighting challenges in macro work.

The ring light is powered via a USB cable, allowing connection to various USB power sources such as power banks, computers, or USB wall adapters.

The diameter of the ring light is 5.85 cm.

While it's designed specifically for the Laowa 25mm f2.8 Ultra-Macro lens due to its thread size and intended use, it may physically attach to other lenses with a 3.35 cm filter thread, but performance and fit are optimized for the Laowa lens.

The ring light features 16 LEDs.

The product color is listed as Black and White.

The product information does not specify adjustable light output; it provides a consistent illumination from its 16 LEDs.

Verify that the USB cable is securely connected to both the ring light and the power source. Try a different USB port or power source to confirm functionality.

Check the power source's output capacity. Ensure the USB connection is stable and free from debris. Clean the LED surface with a dry microfiber cloth.

Confirm that you are using the Laowa 25mm f2.8 Ultra-Macro lens and that the ring light is being screwed onto the correct filter thread (3.35 cm). Ensure there is no obstruction or damage to the threads on either the lens or the ring light.