Those looking for lamps that have a great illumination and a good reflection, which is here actually right. However, you should be prepared, often having to reorder. The shelf life is about at six months to one year. These are now my third. Most of the other lamp broke down a short time later, after one was defective. As you can see I have, however, despite these poorer experiences repeatedly chose this because the luminosity is really great and of course then accordingly provides more safety on the road. One star deduction gibtŽs just for the short life!