LED vs Incandescent / Halogen Energy Savings Calculator
Home energy efficiency upgrades, commercial LED lighting retrofits. Compares energy consumption and lifetime replacement costs between traditional 60W/75W/100W incandescent/halogen bulbs and modern 9W/12W/15W LED equivalents.
Step-by-Step Derivation ▼ Show Steps
Calculations adhere to standard electrical engineering physics and National Electrical Code (NFPA 70) regulations.
Engineering Principles & Calculations
This calculator uses the exact mathematical relationships between Old Bulb Wattage (60W, 75W, 100W), LED Equivalent Wattage (9W, 11W, 14W), Number of Bulbs, Daily Usage Hours, Cost per LED Bulb ($) to determine Annual Dollar Savings ($), Payback Period (Months), 10-Year Cumulative Savings ($), CO2 Emissions Prevented (lbs). In practical installations, factors such as ambient raceway temperature, harmonic distortion, duty cycle continuous operation, and conductor impedance must be accounted for by a certified electrician.
Compares energy consumption and lifetime replacement costs between traditional 60W/75W/100W incandescent/halogen bulbs and modern 9W/12W/15W LED equivalents.
Typical Application & Industry Guidelines
Home energy efficiency upgrades, commercial LED lighting retrofits.
LED vs Incandescent / Halogen Energy Savings Calculator Benchmark Lookup Table
| Bulb Technology | Watts for 800 Lumens | Lifespan | 10-Year Electricity Cost (@ .16/kWh) |
|---|---|---|---|
| Traditional Incandescent | 60 Watts | 1,000 Hours | $140.16 per bulb |
| Halogen Bulb | 43 Watts | 2,000 Hours | $100.45 per bulb |
| Compact Fluorescent (CFL) | 14 Watts | 8,000 Hours | $32.70 per bulb |
| Modern LED Bulb | 8.5 Watts | 25,000 Hours | $19.86 per bulb (86% Savings!) |