from what i've seen and read on the boxes for Dinnotte is weight, they are heavy, and probably not as bright, however they last a little longer than the P7 on battery power.

But, the P7 is way more powerful.... only for the first 2 hours, then it drops to the lumen of the Dinnotte for the remaining hours, is very light, and is extremely affordable.

you can get 2 P7 for the price of 1 Dinnotte