Energy conservation is no longer just a choice; it is a financial and environmental necessity. Many households rely on 9-Watt LED bulbs for daily lighting, but the question remains: how much does it actually cost if left on for 24 hours a day for an entire month?

The calculation is surprisingly budget-friendly. A 9W bulb running for 24 hours consumes (9 × 24) = 216 Watt-hours, which equals 0.216 units per day. Over a 30-day month, the total consumption stands at 6.48 units. At an average rate of ₹7 per unit, the monthly expense is only ₹45.36. Switching to LED technology is clearly a game-changer, offering significant illumination at a fraction of the cost of traditional bulbs, helping you save both money and the planet.