We all know that integrated LEDs are more efficient than incandescent lamps, but how can we see the advantages of integrated LEDs more specifically?Now , Let’s assume a household uses one 60-watt incandescent bulb daily for y hours, with an electricity cost of x yuan per kilowatt-hour (kWh). Here’s how to calculate the energy savings from switching to integrated LED lights:
- Annual Electricity Cost for Incandescent Bulb
Formula:Annual Cost=1000Power (W)×Daily Usage (h)×365×x(yuan)
For one 60W bulb:100060×y×365×x=Incandescent Annual Cost
- Energy Savings with Integrated LED (10W)
Annual Cost for LED:100010×y×365×x=LED Annual Cost
Savings:Incandescent Annual Cost−LED Annual Cost=Yearly Electricity Savings
LEDs use ~1/6 the energy of incandescent bulbs, saving ~83.3% on electricity.
- Power Consumption Reduction
Incandescent annual energy (per bulb):100060×y×365=kWh/year
LED annual energy (per bulb):100010×y×365=kWh/year
Reduction: ~83.3% of incandescent energy use.
- Environmental Benefit
Lower energy use directly reduces carbon emissions. For example, saving 547.5 kWh/year (from 6 bulbs) cuts ~328.5 kg of CO₂ emissions (based on 0.6 kg CO₂/kWh).
- Example Calculation (x=1 yuan/kWh, y=5 hours, 6 bulbs)
Incandescent total cost:100060×5×365×6×1=657yuan
LED total cost:100010×5×365×6×1=109.5yuan
Annual savings: 657−109.5=547.5yuan
Through comparison, it is clear that integrated LED lights are at least 60% more efficient than incandescent bulbs. This is also the reason why integrated LEDs are widely used in daily life.