Sydney, ANZAC and Glebe Island Bridges, Sydney - photo Marghanita

Ecologically Sustainable Sydney

Energy Efficient Lighting

Disclaimer: The information provided here is of a general nature. Ramin Communications is not recomending the specific products mentioned here and accepts no responsibility for the accuracy of information about specific products. Electricity is DANGEROUS and should not be treated lightly. Information on individual product packaging should be read carefully and understood before installation. The advice of qualified Electricians should be sought on specific requirements and installations.

Unlike CFLs, LED Lamps contain no mercury. For more on Fluorescent lamps and mercury, see end-of-life management and Mercury in Fish .

Halogen direct replacement globeEnergy Efficient Long Life LED Lamps vs Halogen Lamps

Direct Replacements

LED direct replacement lamps are now available for 2pin and screw base Halogen Lamps. With a life expectancy of 40,000 hours, they would last 4.5 years, if left on 24hours, 365 days a year. The electricity costs would be about 10% of the equivalent Halogen lamps. This makes them ideal spotlights in libraries, shops and galleries.

Halogen direct replacement globeIn the case of Downlights and Tracklights, each 2-Pin 12 Volts Halogen Lamp uses 35W whereas the LED equivalent uses just 3.8W (4.5 LED replaces 45W Halogen).

In bathrooms which are only used for a short period and require bright lighting there are 9W and 15W Screw Base LED Lamps available to directly replace unsatisfactory CFL or 60Watt,75Watt and 100Watt Incandescents or their Halogen equivalents. LEDs provide instant light.

MR16 Globe

BICHURY MR16 NORMAL GU5.3 MR16 two-pin connectors.

GU10 MR16 is a two pin Bayonette fitting

Comparative Lamp Technology Lifetime

Source: Fact Sheet Lighting Council of Australia (October 2008)

manufacturers have begun using the L70 language, stating that their white LEDs "are projected" to have lumen maintenance of greater than 70% on average after 50,000 hours when used in accordance with published guidelines.

Light SourceRange of Typical Rated Life (hours)* (varies by specific lamp type) Estimated Useful Life L70
Incandescent 750-2,000
Halogen incandescent 3,000-4,000
Compact fluorescent(CFL)8,000-10,000
Metal halide7,500-20,000
Linear fluorescent20,000-30,000
High-Power White LED35,000-50,000 © Ramin Communications 2010. Last modified 28 August 2013.