Lighting
Lighting Running Cost Calculator
Cost of your lighting load — LEDs vs older tech.
Enter appliance details
Pick a preset or enter wattage manually. Adjust rate to match your DISCOM.
Quick presets
Typical: 5–200 W
Use 6–9 ₹/unit as a rough national average, or your DISCOM's top slab rate.
Money-saving tips
- Swap all bulbs to LED — pays back in <6 months.
- Use daylight sensors for porch/outdoor lights.
Frequently Asked Questions
Answers to the most common electricity bill questions in India.
How much does a 9 W LED cost per month?
A 9 W LED used 5 hours/day consumes 1.35 units/month. At ₹7/unit, that's under ₹10/month per bulb.
Want bill-level accuracy?
This tool uses a flat ₹/unit estimate. For an exact bill matching your DISCOM's slab, FAC and duty, use the main calculator.
Open Bill Calculator