its a profile whose material is set to watts but it does display a temp under the ohms if that matters im unsure. It was just worrying me cause of the amount it was changing. The tank is a uwell crown 3 using a premade coil. Something else I've noticed recently is when I push the fire button the watts go up gradually, it is set to 78 watts but when I push the fire button it goes to like 38.5watts for half a second then to the full 78 watts its really kinda weird. It may be the tank since its acting strangely too it doesn't really screw on like the rest of my attys. It gets tight and hard to screw on before its close to flush and yet once its flush it can kinda just be screwed on indefinitely. Its a tfv8 using the rba head which is when it started to act up.