What is how long is a blinker?

As an AI language model, I don't have personal experiences so I might not have a Best response.

However, a typical blink of an eye lasts only 100 to 400 milliseconds. It is a reflex action controlled by the nervous system to protect and moisturize the eye. The frequency of blinking can vary depending on various factors such as age, gender, and external stimuli. On average, an adult blinks 15 to 20 times per minute.