Switching on to LED savings
Supermarket sales of LED light bulbs are rapidly increasing as the cost of the new technology drops, according to the Energy Efficiency and Conservation Authority (EECA).
EECA says only about 1,600 LEDs were sold through supermarkets in 2012 but this figure jumped to more than 257,000 LED sales last year (IRI MarketEdge NZ Grocery Research).
EECA ENERGYWISE expert Christian Hoerning says the decreasing cost of LEDs is one factor, with quality LEDs now costing less than $20. Mr Hoerning says the upfront cost of a LED is higher than a standard bulb but a household would need to replace a standard bulb 15 times over the lifetime of just one LED bulb.
“A standard incandescent bulb costs at least four times more to run than a LED – that means households can save up to $290 in running costs over the lifetime of one LED bulb.” *
“If you are making the switch to LED bulbs, EECA ENERGYWISE recommends replacing standard bulbs in rooms you use the most, and in hard to reach fittings,” Mr Hoerning says.
EECA ENERGYWISE tips for buying LEDs
- Buy a reputable brand
- Choose a warm white LED for living areas and bedrooms
- Before shopping check whether you need a bayonet or screw fitting
- If you want to use dimmer switches, check the packaging to make sure you have the right LED
- You may also see lumens (lm) on packaging, to indicate brightness. While wattage measures the energy a light bulb uses, light output is actually measured in lumens - the higher the lumens, the brighter the light. Both will appear on most light bulb packaging, which can be helpful when you want to find which bulb uses the least energy for the most light output. So think lumens for brightness not watts (W).
*Figures for LEDs based on manufacturers’ claims of 15,000 hours.