We added 3 packs of these lights to a mini 2ft. XMas tree. One of the 16ft. light strings wrapped the top 2/3rds of the tree, another string wrapped the bottom 1/3rd. Another light string was fastened to a 16ft. strip of gold tinsel, and wrapped around the tree. This was a total of 150 lights. The 4th pack of lights was not used.The tree was in our company woodworking shop and ran on its 6 hour timer from 6AM-Noon, M-F, for 2 weeks. We often build LED lighting into wood cabinets, but everyone was amazed how tiny and bright these mini crystal fairy lights are. Our shop has very bright overhead lighting (see pics) and you could see the tree lights from anywhere in the massive shop. The batteries lasted a total of 64 hours, at full brightness. However, the last 3-4 hours they were dim. We used 9 Energizer Ultimate Lithium AA batteries.Each 16ft light strip uses its own control box, which holds 3 batteries. So when using the remote, you are turning on all boxes at the same time. Although there are 8 different "lighting modes", we set it to "Combination" mode. This cycles lights through all the different modes. We did notice after asbout 15 mins, each light string gets out of sync with the others. One string might start "Slow Glow" mode while the other strings are finishing "Twinkle" mode. This was no big deal, it actually made the tree more active looking.We made a small 11"x11"x 1.5" wood tray to hold the tree and the 3 transluscent control/battery packs (see pic). The tree did come with 35 colored lights, and a green control battery pack as seen in the pics. But these lights were bigger, not as bright, and were never turned on. The remote control does comes with a CR2025 watch battery (160 mAh). But we replaced it with the more powerful Energizer Lithium CR2032 battery of the same size (225 mAh). This made sure all our 3 battery packs got signals at the same time.Each battery pack has a manual button to control it, without the remote. The instructions suggest turning on the packs manually first, then use the remote to change modes, brightness, timer, etc. Note: We took one end of our "tinsel" light string and bent the wire so 5 fairy lights were all right next to each other, then slid these up into the middle of Star on top of the tree.
