The 220V voltage will be disastrous for the LED strips if you decide to connect them directly to the standard power supply. After selecting and purchasing led tapes do not forget to buy a 12V power supply. Among other things they have another protective function, and will not let the LED strips get damaged because of a jump or drop in the network. 12V power supplies are transformers that fit most LED strips. 110 or 340 volts goes into them, they still give the necessary 12 volts for the strip due to the fact that transformers are equipped with powerful line filters. In terms of power 12V power supplies are different, if you need it for the tape, you can pick up a one-watt or 1000 watts. Just as you choose the tape, based on the conditions of the place of its installation, you should also approach the choice of protection class of the transformer. You will need to buy sealed (IP65, 66 or 67) 12V power supplies if the point of installation is constantly wet, damp. For a dry place take a non-hermetic (IP20 and IP33) transformer, there is also a middle option - half-hermetic transformers for balconies, porches, where it is possible to get precipitation. If you already know which tape and what length you will connect, then calculate the required power is not difficult. Multiply the consumption of the tape by the number of meters you will connect, and then multiply by another 1.25. Professional advice, do not guess by eye and count on the chance, even a small deviation from the calculations will give you a breakdown of the entire lighting system in a short time, because the transformer will burn out. 12V power supplies in the form of a regular black charger are not a bad option for the LED loop in the form of a table lamp. They don't need to be specially mounted and they won't spoil the design of the room if they just stick out of the socket.