On the bottom in the device You can find the Usb-C charging socket, 3 vent holes for the integrated battery, The brand and also the reference to the output space. I know this e-liquid despite becoming Completely scrumptious is some a coil killer so I won't be tests this coil https://social-lyft.com/story8837870/how-lost-vape-ub-lite-can-save-you-time-stress-and-money