Voopoo Drag 4 Mod Functionality. The Drag 4 mod is a 5W-177W variable power (wattage) device which also includes 4 different temperature control modes (SS316, SS430, NI200 and TI). There are also modes for “Smart” coil detection and an Eco mode to conserve battery power. Using the DRAG 4 mod Click the fire button five times to turn it on/off. Push up or down to adjust wattage or temp. Hold up and down to enter the menu. In TC mode, use fire and down to change from F to C. In TC mode, use fire and up to adjust watts (up to 80). How do you change modes in drag 4? Power On/Off: Press the power button five times. Enter the settings menu: Press and hold both adjustment buttons. Then, use the adjustment buttons and power button to navigate the menu. Change modes: Press and hold both adjustment buttons. What coils do the drag 4 use? The VooPoo Drag 4 kit is compatible with all PnP Coils including RBA Coils.