I have got a string of 50 RGB LED with SM16716 chip in it. The seller told me that I do not need to have Voltage drop concern in this and just use a 5VDC power supply. Reason behind this is that the chip is able to maintain a +5V throughout the string. Is that true? Any comment regarding the above statement? My conventional LED connection(single color without any IC) would require me to take into account on voltage drop and add a resistor into a string.