Lighting Electricity Bill Calculator
What does your home's lighting cost to run? Enter the total wattage, the hours a day it's on and your tariff to see the monthly cost — and the LED saving.
Add up the watts of all your lights. A 2BHK on LED is often ~250-450W in total.
Domestic slab tariffs vary by state and usage — check your bill for the marginal rate.
45 units/month · Rs 4,320/year.
~Rs 1,800/month at roughly 6x the wattage for the same brightness.
Indicative only. Real bills depend on slab tariffs, fixed charges, taxes and how long each light is actually on. Dimming, sensors and daylight cut this further. Lower it by design — see the energy-efficient lighting guide.
Related Guides — Deep-dive reading
Security Lighting Energy Use in India (2026): Keeping Your Home Lit and Safe Without Running Up the Bill
The honest answer to "won't security lighting cost a fortune to run?" It does not have to. Done well, with efficient LEDs and smart switching, a home stays well protected on a fraction of the energy a blazing all-night floodlight burns, and it is safer for it.
SecurityHome Energy Management: Cut the Bill Without Cutting Comfort
The practical playbook for lowering a home's electricity bill — efficient appliances and the BEE star rating, killing phantom loads, shifting usage to cheaper time-of-day windows, managing peak demand, and the power-quality issues that quietly cost you.
Electrical & WiringSecurity Lighting Cost in India (2026): What Fixtures, Sensors and Wiring Really Add Up To
A homeowner's honest, indicative-band guide to what security lighting costs in India — the floodlights, wall-packs, bollards and motion lights, plus the sensors, the hidden wiring and the running electricity — with capex-versus-opex thinking, the mains-versus-solar-versus-motion trade-off, and why over-lighting wastes money and annoys the neighbours.
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The pool of light a spotlight or downlight throws, from the beam angle and distance, with a guide to the right angle.
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The right Kelvin for each room — warm to cool — with why it fits and the CRI to look for.
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How many downlights a room needs and the grid to lay them in — rows, columns, wall offset and pitch.
Lighting Calculator