Cost-Benefit Analysis and Emission Reduction of Energy Efficient Lighting at the Universiti Tenaga Nasional

Table 4

Energy consumption between present and alternative light per day.

Present Light	Fluorescent tube 36 W 4 feet	CFL 14 W	13 W/2 pin	CFL 36 W/4 pin	Fluorescent tube 18 W 2 feet	Total (kWh)
kWh	2,520.29	12.21	1,322.78	8,188.13	1,825.06	13,868.46
Alternative light	20 W-4 ft LED tube	9 W LED bulb	8 W/2 pin LED	22 W/4 pin LED tube	10 W-2 ft LED tube	Total (kWh)
kWh	1,400.16	7.85	814.02	5,003.86	1,013.92	8,239.80