What LED exactly: the one in your TV or in your flashlight?
Moreover, a LED (light emitting diode) is an analogous device, so it doesn't have bits at all. It just sends photons with certain frequency. See https://en.wikipedia.org/wiki/Light-emitting_diode
I am bit confused regarding the color depth difference between 10 bit and 8 bit LEDs. How can i detect that my LED is 10 bit or 8 bit.