Lighting can make or break ambience. Our lab test in a 900 sq ft sample flat: (1) LED panel 18 W – 160 lm/W, cost ₹1,200/piece, uniform light good for bedrooms. (2) COB spot 10 W – 90 lm/W, ₹950, focused beam ideal for artwork. (3) Track magnetic 20 W – 110 lm/W, ₹2,800, flexible for living. Power consumption for 6 hrs/day: LED panel 1.3 kWh/month, COB 0.9 kWh, track 2.1 kWh. We design a 3-zone lighting plan for ₹42 k including driver & aluminium profile. Keywords: false ceiling lights, LED vs COB, lighting cost.