Table 3
Comparative Energy Cost and Savings
LUMINA vs T-10 Fluorescent
3 Year Cycle

Type of Lighting System	Meralco Energy Cost Per Month	Meralco Energy Cost Per Year	Meralco Energy Cost Per 3 Years	Savings	Bulb Replacement Cost
LUMINA 18wattsx2 Set	PhP 27.60	PhP 331.20	PhP 993.60	PhP 658.80	PhP 216.00 for bulb replacement
Fluorescent 40watts (T10) Set	PhP 45.90	PhP 550.80	PhP 1,652.40	0	PhP 60.00 for bulb replacement

Table 4
Comparative Energy Cost and Savings
For 50 Sets of Ballasts and Bulbs
3 Year Cycle

Type of Lighting System	Total Amount Per 50 Sets	Difference in Acquisition Cost	Meralco Energy Cost Per 3 Years	Difference in Energy Cost 3 Years	Cost of Bulb  Change after 3 Years	Savings after 3 Years
(1)	(2)	(3)	(4)	(5)	(6)	(3+5-6)
LUMINA 18wattsx2 Set	PhP31,900	-PhP19,400	PhP49,680	+PhP32,940	PhP10,800	+PhP2,740
Fluorescent 40 watts (T-10) Set	PhP12,500	+PhP19,400	PhP82,620	-PhP32,940	PhP3,000	-PhP16,540

Click to set custom HTML

Table 1- Actual Cost Comparison Computation of Kw/h By Type of Lighting System
Table 2 - Efficacy and Brightness Comparison Per 4 Year Cycle (Lumina vs Fluorescent)