L Tena Retired Faculty or Staff [email protected] Phone: 480-965-1835 USB 2442 TEMPE, AZ 85287-5112 Biography Research Teaching Previous Next Research Activity Tena,L Ray*. RETROFIT LIGHTING FIXTURES - STAUFFER HALL. AZ DEPT OF COMMERCE(8/4/1998 - 9/30/1999). Tena,L Ray*. ENERGY CONSERVATION PROGRAM (FARMER BUILDING). DOE(7/1/1995 - 6/30/1997). Presentations