Independent lighting tool

LED Bulb Lumens, Watts, Energy-Cost & Payback Comparator

Compare an existing lamp and LED using actual package or datasheet values.

Step 1

Enter both lamp specifications

Existing lamp
LED candidate
Usage and electricity

Step 2

Comparison

Enter both lamps and usage to compare.
How it works

Annual energy = watts × quantity × daily hours × days/year ÷ 1000. Payback uses positive purchase difference and annual electricity-cost savings.

Limits

Lumens measure light output; watts measure power. Beam angle, colour quality, dimmer compatibility and actual lamp life are separate decisions.

Compare LED bulb lumens, wattage, efficacy, electricity cost and payback against another bulb using your usage and tariff.

Vukar Automation's LED calculator brings light output and cost into one comparison. Compare lumens as well as watts.

What to enter

Use current, project-specific values for bulb lumens, wattage, usage, tariff and both comparison options. Check every unit before calculating and compare like-for-like inputs.

How to use the result

Review lumens, wattage, efficacy, electricity cost and payback together. Real cost and payback depend on actual use and tariff; fit, light quality and service life need separate checks.

Before making a decision

Verify source measurements, equipment specifications and operating conditions. Have a qualified professional review the final selection, safety and installation requirements before purchase, connection or construction.