Design a general Lighting Scheme with two different options with different types of lighting system $($mentioned below$)$ for the room of dimension $20m16m5m.$ The target maintained average illuminance level is $500$ Lux $.$ The overall Light Loss Factor to be considered as $0\mathrm{.}8.$ Consider the room is to be used for $300$ days per year with $12$ hours per day. Compute the energy consumption for both the options and clearly mention which one is the best option from energy saving point of view.

Option$-1$

Lighting System type $-$ Luminaire with $2$ X $40$ W T$12$ Fluorescent lamp & Electro Magnetic Ballast Luminous flux per Lamp $=2450$ Lumen

Coefficient of Utilization Value $=0\mathrm{.}65$

Cost per Luminaire$($including Ballast$)=$ Rs $2000/-$

Cost per Lamp $=$ Rs$.50/-$

Power consumption per luminaire $($including Ballast$)=120W$