My ORP is charged up for its 3rd year of dark mornings in Australia.  Bikes in Australia must have a bell or horn by law, so ORP’s light-and-horn combo is perfect and I rate it a 5-star product. Actually, it could be better than that: mine went through the washing machine in the back pocket of a jersey and still works fine!  Like it says on the website, ORP is definitely “accident resistant” though I wouldn’t recommend my approach to cleaning.  Thanks for a great product.