The Mac Tools 400 lm MAC Necklight, MACNK400, is a hands-free lighting solution that delivers up to 400 lm. Its dual LED light heads can be operated independently and rotated 360 degrees for precise illumination. The comfortable band allows the user to work hands-free. The light has a 9-hour run-time on the 100 lm setting and a 3-hour run-time at full brightness. With IP54 protection, the MAC Necklight is built to withstand dust and water, ensuring reliable use in demanding environments.