Opinions on 5V LED USB TV cable for strip with 3-4m length: will it damage TV? Need other items?

Hello. I found on the Allegro 5v led strip for the TV which is powered from the usb socket. I would like to ask for your opinions on it. Do you think the intensity of light will be sufficient? And won't it accidentally damage my TV? Should I buy any other items for this set? I think about 3-4 meters in length. Is it better to buy something with standard power from the socket? thank you in advance for any answers

Hello
Theoretically, it should work on the TV's USB connector.
The only question is what current is consumed by such a tape, 3m long.
Don't forget that the USB interface standard is 500mA (0.5A).
Although there is some LED CONTROLLED system whose efficiency is given at max 12A.

Buy a separate usb power supply and control it with usb tv.

Zbigniew400 wrote:
"Buy a separate usb adapter and control it with usb tv"

If he would have an external power supply, why would he need a USB control? This system only takes + 5V from USB.
So with USB it would only be blocking lighting when the TV is turned off.
Maybe it would be better to use audio or video outputs from the EURO, AUDIO or RGB connectors. Of course, this would require either interference with the power supply system or making a circuit board on the power supply OUT cable, which through the transistor would change the resistance in series with the power supply of the switched transistor to the sound or image. The diodes will dim more or less.
I realize that the author of the topic can expect more simple solutions, but his initial intentions to use the TV as a + 5V power supply is economically unjustified. It would be the most expensive power supply in the house.

Thank you very much for the answers. I found such offers on the allegro and wondered how this translates into functionality. I understand, therefore, that you recommend buying a tape supplied as standard from contact