As usual, the quality 1A. Its predecessor, the LED was still screwed in a front Alustück what in some time led to contact failure and if you needed them failed. As you could with screw locking and contact spray remedy. In this light, there is no longer, it is integrated with a plastic housing in the aluminum chassis. Contact difficulties I had not yet, because I do not even have to use long. Nevertheless it makes a robust impression. The switch is to 3mm higher than its predecessor, which one probably for some. may seem distracting, because you can operate it quite easily. Have already soldered with my lights the spring ring lock washer is the link of lamp and trailers, this has not changed to its predecessor, and my experiences were with 4 different people the same. This ring has expanded over time, so it was quite possible that the lamp has been lost, the cause is the weight of the lamp and the fact that it is located on the commodity, the one most commonly used. This time I have wetted the same in the new state with a touch of tin, so that it can no longer expand, and thus can not cause any damage, such as loss of light, injury, or most commonly the perforation of the clothes this ring. :) Unfortunately, I do not know how to put photos here.