Savings Formula:
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Definition: This calculator estimates the cost savings from replacing traditional floodlights with LED floodlights.
Purpose: It helps homeowners and businesses evaluate the financial benefits of switching to energy-efficient LED lighting.
The calculator uses the formula:
Where:
Explanation: The difference in wattage multiplied by usage hours gives watt-hours saved, converted to kWh by dividing by 1000, then multiplied by the electricity rate.
Details: Calculating potential savings helps justify the upfront cost of LED upgrades and demonstrates long-term financial benefits.
Tips: Enter the wattage of your current floodlight, the LED replacement wattage, daily usage hours, and your electricity rate (default $0.12/kWh).
Q1: How accurate are these savings estimates?
A: Estimates are based on input values. Actual savings may vary based on real-world usage patterns and electricity rate changes.
Q2: What's a typical electricity rate?
A: The U.S. average is about $0.12/kWh, but check your utility bill for your exact rate.
Q3: Do LED lights really use that much less power?
A: Yes, LED floodlights typically use 50-80% less power than traditional halogen or HID floodlights.
Q4: Should I include all my lights in this calculation?
A: For total savings, calculate each light type separately then sum the results, as wattages may vary.
Q5: How often should I recalculate savings?
A: Recalculate if your usage patterns change or if electricity rates are adjusted.