Larson Electronics’ 4-foot LED T-Series style bulb replaces the company’s T8 and T12 fluorescents. It delivers 2,750 lumens (vs. 2,600 for a typical T8) and comes in 5,600K and 4,300K color temperatures (which are on the cool side of the spectrum). It’s available for about $70.

Larson Electronics, 800/369-6671, larsonelectronics.com.