The Venus Optics LED ring light is the perfect complement to the Laowa 25mm f/2.8 Ultra Macro lens. Attached to the front of the lens, it evenly illuminates subjects for easier focusing. The increased amount of light also allows you to take advantage of much lower sensor sensitivities for better quality images. The lamps small size and low weight make it extremely handy and unobtrusive. The lamp can be powered by any power bank or AC adapter equipped with a USB port (power source not included). Specifications number of LEDs: 16 panel dimensions: ⌀5.9 x 1 cm power cable length: 100 cm lamp weight: 32 g Compatibility Venus Optics Laowa 25mm f/2.8 Ultra Macro lens Kit contents LED lamp micro USB - USB cable case