Figure 6. Nomogram for Typical Lamp Life in Years. Lamp usage cost comparison A comparison of lamp cost (operating and replacement) between technology types is shown in CFLs are currently the most cost-effective technology available, primarily due to the high Figure 7. purchase cost of good quality LED lamps. Halogens have a higher power usage and also require more frequent replacement due to their shorter lifetime, and are only marginally more cost effective than the phased-out tungsten filament incandescent. The time scale in is based on lamp use of 5 hours per day, which is typical for commonly Figure 7 used areas such as kitchens and lounge rooms (see ). In other rooms where the hours of use are less, the cost shown on the graph will decrease by the same proportion (e.g. halving the hours of use per day will halve the cost at each point in time on the graph). Figure 7. Comparison of tungsten filament incandescent, halogen, LED and compact fluorescent lamp operating and replacement costs, assuming 5 hours use per day. Comparison is based on lifetimes of 25,000 hours for LED, 8000 hours for CFL, 2000 hours for halogen and 1000 hours for tungsten filament incandescent lamps; an LED price of $50, CFL price of $6, halogen price of $4 and tungsten filament incandescent price of $1; and electricity rate of 25.378¢ per kWh (Tariff 11, Origin Energy, July 2012). Lamp labelling Lamp characteristics may be displayed on the packaging. It is mandatory for tungsten filament incandescent and halogen lamps to have the light output in lumens, wattage and lamp lifetime marked on the packaging. CFLs must have the same information on their packaging, along with the mercury content in milligrams. Other typical performance information that may be included on lamp packaging is the efficacy and CCT (an example is given in Some LED lighting may Figure 8). have additional information regarding the promoted by Lighting Council Australia (www.lightingcouncil.com.au/site/ssl/overview.php). These labels provide a wider range of information about product performance but are not an endorsement of the product meeting a minimum level of product quality. Figure 8. An example of how lamp performance (e.g. colour correlated temperature) information could be displayed on packaging.
Figure 6. Nomogram for Typical Lamp Life in Years. Lamp usage cost comparison A comparison of lamp cost (operating and replacement) between technology types is shown in Figure 7. CFLs are currently the most cost-effective technology available, primarily due to the high purchase cost of good quality LED lamps. Halogens have a higher power usage and also require more frequent replacement due to their shorter lifetime, and are only marginally more cost effective than the phased-out tungsten filament incandescent. The time scale in Figure 7 is based on lamp use of 5 hours per day, which is typical for commonly used areas such as kitchens and lounge rooms (see ). In other rooms where the hours of use are less, the cost shown on the graph will decrease by the same proportion (e.g. halving the hours of use per day will halve the cost at each point in time on the graph). Figure 7. Comparison of tungsten filament incandescent, halogen, LED and compact fluorescent lamp operating and replacement costs, assuming 5 hours use per day. Comparison is based on lifetimes of 25,000 hours for LED, 8000 hours for CFL, 2000 hours for halogen and 1000 hours for tungsten filament incandescent lamps; an LED price of $50, CFL price of $6, halogen price of $4 and tungsten filament incandescent price of $1; and electricity rate of 25.378¢ per kWh (Tariff 11, Origin Energy, July 2012). Lamp labelling Lamp characteristics may be displayed on the packaging. It is mandatory for tungsten filament incandescent and halogen lamps to have the light output in lumens, wattage and lamp lifetime marked on the packaging. CFLs must have the same information on their packaging, along with the mercury content in milligrams. Other typical performance information that may be included on lamp packaging is the efficacy and CCT (an example is given in Figure 8). Some LED lighting may have additional information regarding the promoted by Lighting Council Australia (www.lightingcouncil.com.au/site/ssl/overview.php). These labels provide a wider range of information about product performance but are not an endorsement of the product meeting a minimum level of product quality. Figure 8. An example of how lamp performance (e.g. colour correlated temperature) information could be displayed on packaging.