The LITEBAND ACTIV 400 is designed to provide you with light in almost any situation. The LITEBAND ACTIV 400 provides 210 degrees of illumination for about 32 hours on the included 1800 mAH rechargeable battery pack. The LITEBAND ACTIV 400 has 20 LEDs that provide 400 lumens and is controlled by a simple touch on/off button that allows you to cycle through the five lighting mode settings. The ACTIV 400 has a balanced design with less weight forward which means less neck strain. The adjustable strap is soft and flexible that won't rub, bounce, or irritate. The headband also easily fits over hardhats and helmets.