A T20 bulb is commonly known by industry standards as the following bulb sizes: 7440 7441 7443 7444 992A, etc. These T20 bulbs are commonly used for the turn signals, tail/stop lights, reverse lights, and daytime running lights.
Confidence votes 71. The age of viability is 24-26 weeks gestation, although a baby born that early will have some complications. A baby born at 20weeks gestation cannot survive outside of the womb; therefore, the further along the pregnancy, the greater the chances of survival for the fetus.
Occasional survivors born at 22 weeks' gestation have been reported 7. Despite our initial resuscitation of three infants born at 22 weeks' gestation who appeared to be viable (i.e., there was a heart rate and respiratory effort at birth), all died by 4 months of age.