The number of LED is a lot of people care about, think the more LED lights the better, so dozens of or even hundreds of of the LED camera lights came into being. Why a lot of LEDs, the goal is obviously, is to want more power, higher brightness.
Because we do not understand the nature of the LED, can only be recognized from the number of it, the same power LED lights, the number of more, the higher the brightness, so the more the better the LED. High-power led high brightness, but high-power led heat is very high, must have a heatsink, increased the additional volume and weight.
Therefore generally can only use 1-5 led,bl-5500k camera light is 5 5W of LED lights.