Type B LED T8 tubes have long been the most popular choice when retrofitting fluorescent to linear LED. But did you know Type B LED tubes are the most susceptible to flicker? Your eye doesn't see it, but it is occurring and can impair us in different ways. Energy Focus has designed a true flicker free LED T8 that has been lauded as the ideal choice at institutions like schools and hospitals. Check out the flicker effect difference at the video below!