This Variable Voltage Battery works great with pre-filled oil cartridges or wax atomizer tanks. Offers 3 color coded voltage settings: Red / 4.0V, Blue / 3.7V, Green / 3.4V. Click 5x to turn on, click 3x to change voltage, click 2x to preheat for 15 seconds, click 1x to use. Multiple color options available.
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