It's a mechanical box where one can put 2 batteries 18650 at the same time to have greater autonomy. It is made from aluminiumof impeccable quality, the batteries' adjustement is made with a wheel under the box. Its pin 510 is spring-mounted that allows to adjust automatically any atomizer.
The New HexOhm 3.0 has its own proprietary board that is rated for up to 30 amps and a capable of 180 watts. Some additional features added include low voltage cutoff for battery protection, a 10 second cutoff timer and a master on/off switch.
The latest version of the Tuglyfe from Flawless Distribution