I've bought the same 2 pins: a I use in automotive repair, with its slimline design is very geschckt when working in the engine compartment. The Second I use in the field as a light source at night. Here I use the practical clip, with which the pin on the jacket / shirt can be attached.
Positives: 1 super bright LED's - a lot of light 2. More precise pressure point of the power key 3. consistently rubberized surface - very handy
Negatives: so far found no criticisms.
The product exceeds my expectations. I would buy the pen at any time.
