BENEFITS: Very attractive high attention getting LED Holiday lights. Higher energy efficiency, durability and increased safety. The blinking motion of these lights adds a fascination and excitement to your home or store front. These are much more eye catching than previous light sets. You will be surprised at how much more beautiful these decorative lights perform. You will have lower replacement costs and much less power consumption causes these light sets to pay for themselves. Long lasting LED lights are solid-state construction and don't contain the fragile filaments like incandescent bulbs, making them sturdier and more resistant to failure. According to the Department of Energy, the best white LEDs have been found to have a useful life of a minimum of 35,000 hours, or four years of continuous operation. Also, when one light goes out on a string, the others stay lit. These are 90 percent more efficient than incandescent light sets. Safety: The epoxy plastic that encapsulates the LED bulbs is cool to the touch solving hot bulbs that cause Christmas tree fires. Great to dress up indoor or outdoor parties and wedding tables and front windows and walls of stores and every Day Uses in the Home. Reliable and cheap to run LED light sets make them much easier and less frustrating to enjoy than incandescent sets. They pay for themselves since they are so efficient, require less electricity to run and less replacing than incandescent bulb sets. 1.Length of tube:13.78inch(35CM), 40leds. 2.Dia of tube:0.47inch 3.The distance of tube:19.6inch 4.with connector end to end 5.12tube/set with one transformer 6.double shine