I need to apply IF statement in Widget LED

[John93]

I recommend you:

1- keep your void loop clean, just

void loop()
{
  Blynk.run();
  timer.run();
}

Nothing else.

2- avoid using delay with blynk and use blynk timer instead, check this very useful topic

Using BlynkTimer or SimpleTimer

Many users seem to struggle with the basic concepts of using BlynkTimer in their projects, despite the excellent discussions and tutorials that exist on this forum, so I thought I’d write a guide that will hopefully help clarify things. It’s rather long, as it attempts to explain the reasoning behind why and how we use timers, and covers some more advanced subjects, but I’ve tried to organise it in a way that helps people to find answers to specific questions… Why use a timer at all? Let’s say …

3- keep your sketch as simple as possible.