In an time when there is growing concern about Global Warming and Climate Change, and there is a desire to reduce our environmental footprint, individuals and corporations are seeking ways to reduce environmental impact.
Energy efficient lighting, particularly magnetic induction lamps, an be seen as a way to implement an environmentally friendly technology which can reduce impact in several areas such as saving energy, reducing CO2 emissions, reducing materials consumption, reducing Mercury consumption, and recycling issues.
Reducing the environmental impact and “carbon footprint” of your operations may be more feasible when implemented as a series of small incremental steps rather than as a large project. One of the often overlooked areas where it is both simple and financially feasible to make improvements is in lighting systems. Magnetic Induction lighting is one of the most environmentally friendly options available today.
Induction lights are fluorescent lamps without electrodes or filaments. They have a lifespan of up to 100 000 hours compared to conventional incandescent (1000 hours) and high pressure sodium lamps (25 000 hours).
They also offer instant start and restrike, crisp white light and dimmable ballasts. The induction lamps require a correctly matched electronic ballast for proper operation. The ballast takes the incoming mains AC voltage [or DC voltage in the case of 12 and 24V ballasts] and rectifies it to DC. Solid state circuitry then converts this DC current to a very high frequency which is between 2.65 and 13.6 MHz depending on lamp design. This high frequency is fed to the coil wrapped around the ferrite core of the inductor. The high frequency creates a strong magnet field in the inductor which couples the energy through the glass and into the mercury atoms inside the tube.
The ballasts contain control circuitry which regulates the frequency and current to the induction coil to insure stable operation of the lamp. In addition, the ballasts have a circuit which produces a large “start pulse” to initially ionize the mercury atoms and thereby start the lamp.
The close regulation of the lamp by the ballast, and the use of microprocessor controlled circuits allows the ballasts to operate at around 98% efficiency so only around 2% of the energy is wasted in the induction lamp ballast compared to the 10-15% wasted in traditional “core and coil” designs
Cost effective – average of a 50% saving
Reduced maintenance costs due to extended lifespan
Low heat generation reduces air-conditioning costs in summer
Improved productivity due to better light quality
In-store products potentially appear more appealing due to improved colour rendition (potential to increase sales)
5 -10 year warranty on lamps and ballasts
Lamps use Amalgam <0.25mg (solid nickel/mercury alloy) – eliminates mercury evaporation risks and seepage into
Less waste on lamp replacements
Reduced carbon emissions – only 0.0546kg of CO2 emitted for every 1kWh generated
Reduced coal burning for electricity generation –only 0.38kg of coal burnt for every 1kWh generated
Reduced ash from burnt coal – only 0.1292kg of ash produced for every 1kWh generated
Saves water – only 1.32 litres of water used for every 1kWh generated
Improved light quality and output
High luminous maintenance rate (95% after 20 000 hours and 85% after 60 000 hours)
High working frequency (230KHz) means no flickering
Better colour definition – colours of objects are brighter and more defined
No glare (better eye protection)
Low / High bay lighting
Road, tunnel and building floodlights