Students are strongly encouraged to use compact fluorescent (CFL) or LED light bulbs for desk lamps and other personal lighting. CFL bulbs use 75 percent less energy, generate less heat and last 10 times longer than conventional bulbs. LED bulbs use about 80 percent less energy, generate no heat, and last 25 times longer than conventional bulbs (and they don't contain mercury). Doing this will help the environment, and Suffolk will save energy, too.