The Angel Eyes E700U has 7 LEDs: 4 CREE XP-G3 LEDs on the front with a maximum output of 2800 lumens and 3 UV-C LEDs on the side with a wavelength of 270nm which has a germicidal effect on bacteria and viruses when used at close range. The total power of the UV-C LEDs is 18mW and the effective working distance is 10-50cm for 3-10 minutes. The UV-C LEDs are protected by a quartz window so please be careful to avoid breakage. The E700U uses a powerful 21700 li-ion battery with a capacity of 5000mAh. It supports USB-C quick charge, and in emergency situations, the E700U could act as a power bank for charging your other USB-C devices.