Dear customer, when you've got any question, contact us!!! Note: 1 Strip is not included. 2 Led strip PCB width should less than or corresponding to the tube PCB width. three product makes use of low voltage DC strength supply, should use AC-DC switching power supply Use after voltage conversion!4 Select:for 5mm comfortable strip,you can favor 10x10for 8mm smooth strip,you can favor 12x12/16x16/20x10/20x15/20x20for 10mm mild strip,you can prefer 20x10/20x15/20x20 Description Feature: ☆A solution for LED irregular lights design. ☆The silicone sleeve channel offers a professional and handy solution, and the black border design has a unique leading-edge aesthetic. ☆Professional structural design, made of effective silicone material, allows for mushy or even gentle display with out spots. ☆The channel holder is water resistant and dustproof, insoluble in acids and alkalis, and very durable. ☆You can bend or lower in step with your wishes. ☆Embedded installation, more convenient. No must spend time threading the sunshine strip into the tube ParametersMaterial: SiliconeProtection Level::IP65 WaterproofSize:10x10mm/12x12mm/16x16mm/20x12mm/20x15mm/20x20mmWorking Voltage:For 5V/12V/24V LightingWorking Hours:50000HOperating Temperature:-20~50℃Installation:RecessedPackages Included: 1x1-5m Silicone Neon Tube (the size which you choosed)