KangerTech® CE4 Clearomizer Tank 1.8Ω Coil (1.6ml). A popular disposable clearomizer by Kangertech. How To Use Your KangerTech CE4 Clearomizer KangerTech CE4 Clearomizer. The CE4 has a sealed, screw closed tip to prevent leaking and longer wicks to draw E-liquid from deeper in the tank, to prevent problems of 'dry hitting' (which reduces the life of the clearomizer) and removing any unpleasant taste.