Lighting & Energy Savings

LED Conversion Calculator

Convert old incandescent or halogen bulb wattages into equivalent LED lumens and calculate your annual electricity cost savings.

1. Old Lighting Profile

Old Bulb Type & Wattage

Number of Bulbs Replaced

Average Daily Usage (Hours)

Electricity Rate ($/kWh)

2. LED Equivalent & Savings

85% Energy Reduction

RECOMMENDED LED EQUIVALENT

9W LED (800 lm)

ANNUAL ELECTRICITY SAVINGS

$130 / yr

POWER REDUCTION

510 Watts Saved

Immediate Payback: Replacing 10 bulbs with LEDs pays for itself in less than 6 months of average household use.

LED Replacement Best Practices

Match Lumens (light output) rather than Watts when shopping for LED bulbs.
Choose Color Temperature: 2700K–3000K (Warm White) for living rooms/bedrooms, 4000K (Cool White) for kitchens and workspaces.
Ensure dimmer compatibility: Standard incandescent dimmers will flicker or hum with LED bulbs unless replaced with an LED-compatible dimmer.

Swapping to LED

Incandescent → LED equivalence

Match brightness (lumens), not watts.

Old incandescent	LED equivalent	Lumens
40 W	4–5 W	450 lm
60 W	8–9 W	800 lm
75 W	10–13 W	1,100 lm
100 W	14–17 W	1,600 lm
150 W	22–28 W	2,600 lm

On dimmers use LEDs rated dimmable and check the dimmer's minimum load — LEDs often sit below it, causing flicker.

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