With the global trend towards energy efficient lighting and South Africa’s electricity generation challenge, electrical and electronics distributor and manufacturer ACDC Dynamics has increased its range of light-emitting diode (LED) products and has introduced induction lighting to its range.
ACDC Dynamics product planner Jacques Coetzee says that the company is attempting to supply all types of lighting applications such as LED floodlights, streetlights and high-bay lighting, for commercial and domestic use, as well as induction floodlights, high- and low-bay lighting and streetlights for industrial use.
The company explains that high-power LED streetlights, which have a power efficiency rating of 85%, comprise an adjustable hoop, making them easy to install on any type of lamp pole. The technology also includes the world’s first dedicated optical system, which comprises a rectangular beam-focusing lens. Instead of scattering light in all directions, the light is focused in a rectangular area below the streetlight.
Glare caused by ordinary streetlights and visual fatigue are also eliminated, improving driving safety and reducing traffic accidents. The high-power LED streetlights also prevent light pollution, as no light is scattered outside the designated illumination area.
ACDC Dynamics is currently supplying LED floodlights for perimeter lighting at a tobacco company. Various options are being investigated, including the use of solar power to run the lighting.
Meanwhile, Coetzee says that the company has found induction floodlights to be popular at its Rustenburg franchise, where many mining operations are situated.
Both LEDs and induction lighting have a long life span and provide low-cost maintenance. LED products provide between 50 000 and 60 000 hours of operation, depending on the conditions they are ope- rating under, while induction lighting provides over 60 000 hours of operation. Induction lighting is preferred for use in applications where large areas must be illuminated and has minimal glare. An LED, on the other hand, is a more focused light source.
Both forms of lighting can restart imme- diately after being switched off and maintain their level of light over their life span, unlike discharge lamps, such as metal halide lamps, which need to cool down before use and gradually emit less light over their life span.
Further, induction lighting is more expensive than discharge lighting, but is more economical than LEDs. However, LED lights emit less heat and are designed as one solid piece of equipment that is resistant to vibration and shock, while induction lighting has a fragile glass lamp that contains mercury.
LEDs are mercury free and more environment friendly. The lighting product also does not generate ultraviolet light, which causes plastic to become brittle after being exposed for a long period.
In terms of health concerns surrounding induction lighting, Coetzee says that there is no evidence that the electromagnetic interference emitted by induction lighting is a health hazard.
“For the light to be efficient, the magnetic field has to be concentrated in the area of the globe, while induction lighting is generally used for industrial applications that are not in close proximity to people. Induction lighting does create electromagnetic interference and is, therefore, not always suitable for areas with sensitive electronic equipment. Further, the most commonly used appliances, such as fluorescent lighting, microwave ovens and cellphones, also create electromagnetic interference,” he explains.
ACDC Dynamics has a number of franchises, called ACDC Express, across South Africa and has entered into negotiations to open the first ACDC Express outside South Africa in Maputo, Mozambique, this month. ACDC Dynamics also has a partnership with Namibia-based group of companies Pupkewitz, and has distributors throughout Africa.