I have the 1st one of the 2 you listed and it is the best one i have got from here, 21700, 4 stages varying from extremely bright all the way down to a more modest beam, button is very responsive to ON/OFF and toggling brightness modes.

On its brightest setting it does become EXTREMELY hot.... so beware of that, but it is designed to be able to handle it.

For the price it is a steal.

Highly recommended.