He's a better body puncher then to the head.
His power does seem a bit underrated though. I think if he countered more often and sat down on his shots he'd be a harder puncher. Or at least land harder shots. He always seems jittery when he throws power shots like he's trying to hit hard Instead of letting them flow.
He has none at welterweight. He had Mayweather type power at 140, where he could knock you pretty good but typically went the distance, but it's been nonexistent since he moved up full time.
They're not as hard as they look because he wings a lot of his punches. I think his reach is poor so to compensate he over extends on much of his punches. They look powerful but the transference of energy is inefficient.
I think Bradley's power is near non existant.
Unlike Mayweather who has sufficient power to keep guys honest with his jab and straights, Bradley's keeps guys off with the threat of that big lump of a noggin of his smashing into them!
He hits hard enough but not hard enough to put dudes away. You could see Vargas wearing down and just trying to survive after the 5th or so. The fight wasn't that competitive, Bradley dictated most everything.
From a scale from 1 to 10 I think Tim has 7 type of power. It was much more apparent at 140 though. But at 147, guys are still feeling it and it keeps them honest. Last night he was breaking Vargas down physically and mentally. By the 10th round, I thought he was going to go in for the kill. Instead, he started boxing him from the outside. Had he kept the pressure on, I think it was very possible to get the tko.
I guess I would say his power shots sting his opponents, enough to the point to make the opponent think okay he has a little pop enough not to get reckless but not to think he can KO me, kinda like Herrera against Provodnikov and Swift kinda of power. Enough to win rounds with clean hard jabs and right hands that sting you for 12 rounds.