I live on the lagoon right outside of Port Canaveral. Last week after Hurricane Matthew we had lost power, and I broke out my small arsenal of 2 and 3 D-Cell maglites I have collected over the year. Holy buckets, I have a whole new level of respect for these guys now. Worth every penny and more. I was able stage 3 of the LED maglite around the 2700sq ft house and light it up AND THEY RAN ALL NIGHT. 9 hours straight, 2 nights in a row, on old batteries. (They also survived a handful of sword battles between a 5 and 2 year old) I now have a case of D-Cell batteries with no real use for them. I guess the Kids will be getting 1980s boom boxes for Christmas this year. ;) Seriously tho, thanks for building a solid trustworthy product. I really appreciate it!