The EA Mod from EHPro
This is a top-of-the-line mechanical mod at a great price. The EA Mod is constructed of stainless steel and the contacts are made of brass for excellent conductivity and virtually no voltage drop. The EA also has a floating center pin, to ensure that anything you attach to it will look great and have proper airflow. The top cap is removable, and has 510 as well as eGo threading, so you can use virtually any atomizer, cartomizer, clearomizer or tank. The EA comes included with 2 telescoping center tubes, so you can use any battery configuration you'd like. The smaller tube will accommodate any IMR battery from 16340 to 18500. The longer tube will accommodate an 18650 battery as well as an 18650 WITH A KICK! With this mod, you won't have to sacrifice battery life for variable wattage capability. With a side-mounted bottom switch, this mod has everything you're looking for in a high-end mechanical mod for a fraction of the price!