Ws2812b not full brightness

Im doing a project with WS2812b's. I'm experience a little but of confusing problem. With the 5050 leds a white led is supposed to be operating at 60ma. Mine are only on 30ma. on a single color about 15 ma instead of 20ma.

Im using adafruits library with the strandtest example that i have modified to just solid on pixels, a 5v/4a power supply, and 8 ws2812s. Any suggestions to what Im not seeing?