Dremel or Laser for wood carving

Hello guys, I'm new in the forum and can tell you that I'm really amazed by all the things I saw.

I describe my hobby as "wood carving". I was looking for other methods of wood carving, then I came across laser pointers, and I was wondering if it could get the job done.

I'm looking for an easy way of "carving" half inches depth into wood (hardwood), for a lot of lines , more then 60 cm of length each of them, which mean only having to manage how deep the cuts go, and how big they are, there is not much designing to do.
I'm using a dremel with heads and other carvers kit, but I always have to change heads because they start to melt if I don't change them.

So I wan't to know if laser can get me enough power to stay more then 30 minutes, just burning and removing wood from the drawing ( it's like laser carving, but it as to be made by hand)
And also, is there a way to change the size of the output laser, to make it bigger or smaller?

What tools would be best : should I stay with the dremel, or the laser is going to give me what i'm looking for?

Thank you for reading.

N.B.:In the picture, the darker lines are the carved lines, with half inch of depth in each hole, this is a small exemple of what I do. Imagine doing this on a entire door for exemple.
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A laser is very precise. But its more like wood burning effect. I would think it would be more effictive with a dremel. but you could always add some nice accents to the wood with a laser. Preferably a 1.5W 445nm laser would do nicely. But remember, always use a good pair of safety glasses for the proper wavelength you are using.

Someone else chime in here. I gave minimal info i feel.
I tryed my best though

I also think that a dremel would be best because a laser will 'burn' the wood. I'm not sure if you can get 0.5 inch deep without igniting it. Especially with 1.5w of 445nm

Without question, the dremel!:beer:

Hi,
Have a look at Synrad - CO2 lasers. (expensive $$$)
The depth will be the main problem for a laser, but might give you some ideas.
Dremmel or a high speed spindle sounds like the best method.

And honestly these days, 'hand-made' is hard to come by. Everything is done by robotic arms and such. As soon as a laser is added to the equation, things may change. Maybe. It could still be considered hand-made i guess, but with 21 century tech. Idk, maybe im just over-thinking it...