700 Lumens cool white , 7075 Aluminum

 the Angel Eyes E3 series. It's powered by a built-in Lipo battery (charged via USB-C port), and a replaceable AAA battery. Opening (unlock) the light head to replace the AAA battery and lock it to use the external battery automatically.

Size: 66.1mm (L)*27.5mm (W)*13.5mm (H); Weight: 32g 
Material: 6063 aluminum (E3), 7075 aluminum (E3 Pro)