Inputs

Lamp count Enter a numeric project value at or above 1. Halogen watts per lamp W Enter a numeric project value in W at or above 0.1. LED watts per lamp W Enter a numeric project value in W at or above 0.1. Operating hours per day h/day Enter a numeric project value in h/day between 0 and 24. Operating days per year days/year Enter a numeric project value in days/year between 0 and 366. Energy tariff $/kWh Enter a numeric project value in $/kWh at or above 0. Transformer compatibility confirmed Tick when this condition applies or the record is available. Dimmer compatibility confirmed Tick when this condition applies or the record is available.

Halogen annual kWh -- kWh/year

LED annual kWh -- kWh/year

Annual kWh saved -- kWh/year

Annual cost saved -- $/year

Calculation details

Halogen annual kWh: -- kWh/year
LED annual kWh: -- kWh/year
Annual kWh saved: -- kWh/year
Annual cost saved: -- $/year
Power reduction: -- %
Compatibility review required: --

Important notes

Check transformer minimum load, dimmer type, heat, enclosed fittings, beam angle, colour, flicker, product approvals, and manufacturer compatibility data.
Electrical work and Australian installation requirements need licensed review; this calculator makes no automatic compliance claim.

Formulas

$\displaystyle E = nP hd/1000$
$\displaystyle S = E_{\mathrm{halogen}} - E_{\mathrm{LED}}$
Transformer and dimmer compatibility can block a simple lamp swap.

Estimate power, annual kWh, cost savings, and compatibility review flags for replacing halogen lamps with LED products.

Halogen to LED Replacement Calculator is a planning aid. Keep the target source, product data, measurement method, and project assumptions with the result. Confirm compliance, installation, certification, and safety decisions with the responsible professional.

Inputs

Results

Formulas