Suggestion for program

Here is my proposed code, do you have any suggestions?

1. So in this code, LED1 is not an output, so I shouldn't have to do a read correct?

2. The only reason you suggested bumping power with setTxPower(4) is just to give me some more distance correct?

Thank you.

function sendAdvert() {
  if(Puck.light() > 0.50){
    NRF.setAdvertising({0x180F : Puck.getBatteryPercentage()});
  }
  else{
   NRF.setAdvertising({0xFFFF:"0"});
  }
}

NRF.setTxPower(4);
setInterval(sendAdvert, 1500);