You asked for it, and we answered. We have increased the life span on some of our more popular items. All Dragonflies, Butterflies, Hearts, and Squares now last over 5 hours! The tradeoff is a longer charge time using either solar or USB, but we think its worth it for the added blinky awesomeness. Check out the Etsy listings for more details. Perfect holiday gift for the geek in you, or the geek in your life.