Not very bright at all. The process of becoming blinded by light is because the iris contracts when the light level increases. The reverse process of dilation is slow for humans, so the return to darkness leaves your eye with insufficient light coming in to see in the environment you suggest. This isn't a binary factor.
The VA calculates the rate of pursuit by dividing the number of credit hours being pursued by the number of credits considered to be full-time for the term. As as example, if the term is 10 to 13 weeks in length, 12 credits is considered full time. If the term is 8 weeks in length, 8 credits is considered full time.
Version 2002, effective July 1, 2002 Page 3 Part 2: DEFINITIONS AND CLARIFICATIONS Student FTE. A full-time equivalent (SFTE) student equals 30 student credit hours at semester system schools and 45 student credit hours at schools on a quarter system. Colorado Resident Student.