Very good, lightweight, fast, and sturdy. First time using an electronic mask after working with a classic one for so many years. Pay attention to the response time from light to darkness. This one has a response time of 1/25000 of a second and the shading is really immediate. Also, the fact that you may be working in different lighting conditions, for example, in the sun or in a warehouse with a lamp near you, I believe that sensitivity adjustment and delay adjustment are definitely needed. It takes a 2450 battery, which is rechargeable, but the contact is not a serious problem. You just need to replace it at a store that carries it. They asked me for 6 euros for the battery and the work to replace it.

It has a spare plastic UV exterior and it can fit a classic transparent glass measuring 9 x 11 mm up to 2mm. The negative aspects are that it doesn't have a battery indicator and the silver paint color will quickly fade and get marked. I went to buy the panoramic total tsp 9101, which I must admit had a more comfortable fit on the head, and luckily, when I tried it, I realized that the side windows don't work as well as in the more expensive 180-degree ones. Also, some plastic parts came off in my hands with the first contact and the mask is 1/15000. I don't know how easily you can find a replacement for the large transparent plastic that can break. In conclusion, in my opinion, an adjustable 1/25000 with a battery indicator would be good.