cigarette plug wall adapter Yelesley AC to DC Converter 2A 24W Car Lighter Socket 110-240V to 12V AC/DC Power Black : Automotive you can simply cut off the 12V adapter and run the wires directly to your battery terminals SiriusXM PowerConnect Cigarette Lighter Power

You can combine them with mix rgb node or a mix shader node, for this task I'll reccomend you to use mix shader node just plug both the colors/textures in a principal or shader you think is more preferable and combine them, now for the next part you can use a gradient texture with mapping node and object coordinates and plug it into the factor input( you may need to inverse it for that just invert the order of sockets you have plugged into mix shader, the lower one in upper and upper one in lower), now you can use a color ramp to tighten the gradient as per your liking and use mapping node to move or rotate it, you can even add a noise texture in middle of mapping node and object coordinate to make a random coming ash on paper.

So, to convert DC to AC we need this power inverter for cigarette lighter

May include additives to adjust porosity and combustion behavior

Proponents of the practice say it provides a pure experience with less lung damage than smoking

Always prioritize your health and choose the method that suits you best