These nice little lights .... when walking. I received a first batch with a faulty light (flashing quickly by flashing and ended up slamming after a few uses). Complaint quality, I get a new batch with a lamp that never wanted to be on. Fortunately that Amazon achieves exchanges simply! So with 2 batches I made a quality works and return the other .... Incidentally personal message to Amazon: thank you, do not change anything about your return policy - what tranquility!