(a) In this section, “housing facility” has the meaning assigned by § 53.02.
(b) An institution of higher education shall purchase for use in each type of light fixture in an educational or housing facility the commercially available model of light bulb that:
(1) is compatible with the light fixture;
(2) uses the fewest watts for the necessary luminous flux or light output; and
(3) is the most cost-effective, considering the factors described by Subdivisions (1) and (2).