- Installation of LED modules (with power supplies) needs to be made under consideration of all valid regulations and norms. - Installation by qualified electrician only. - Please drive the led strip with isolated power, and the ripple of the constant voltage source should be less than 5%. - Please do not bend the strip into an arc with a diameter less than 20mm to ensure the longevity and reliability. - Do not fold it in case any damage of LED beads. - Do not pull the power wire hard to ensure the longevity. Any crash may damage the colloidal surface is prohibited. - Please make sure the wire is connected to the anode and cathode correctly. The power output should be consistent with the voltage of the strip to avoid damage. - LED lights should be stored in dry, sealed environment. Please only unpack it before usage. Ambient temperature: -20 ºC ~ + 40 ºC.Storage temperature: -25 ºC ~ + 60 ºC/60%RH. - Please use the strips without waterproof within indoor environment with humidity less than 70%. - Please be careful during operation. Do not touch the AC power supply in case of electric shock. - Please leave at least 20% power for the power supply during using to ensure there is enough power supply to drive the product. - Do not use any acid or alkaline adhesives to fix the product (e.g.: glass cement). - Must have extra power supply if the working length exceeds the maximum run length. - The joints of extended strips should be deal with waterproof when using waterproof products.