LED Lighting

Lighting Projects

LED (short for Light Emitting Diodes) are solid state lights which are low energy, highly durable and with a long span compared to typical incandescent, halogen or CFLs.

Main benefits of LEDs as a lighting solution are:

  • No mercury thus safe
  • No flickering
  • Offers full spectrum light, coming closest to white light compared to other lighting.
  • Cost saving due to low energy usage, long life and durability. Swapping conventional lighting completely with an LED based system can offer savings of up to 70% since it uses less power.

Next step (after solar geysers) is to consider – Efficient Lighting

As an overview:

  • Incandescent bulbs are very inefficient with the majority of the electricity being wasted through heat.
  • Halogen bulbs do not save any energy over incandescent.
  • Low voltage lighting (12V) is actually less efficient than mains 220V lighting.
  • CFL lighting can save up to 70% of the electricity used in an incandescent bulb and enjoy a much longer life.
  • LED lighting can save up to 85% of the energy in an incandescent bulb for the same lumens output. They also enjoy a very long life of up to 30 years before failing.


Before investing in LED lighting technology, consumers need to be aware of the potential pitfalls…

  • If LED down lights are not correctly fitted with sufficient space for the heat to be dissipated efficiently, their anticipated life may be reduced to months or a few years.
  • The lumens output is not always as much as claimed particularly with cheaper product from unknown brands. A 5W LED may for example only produce 4,5W output after a short period, rendering the light output to be inadequate. For example a 6W LED in replacement of a 50W halogen will probably be a better bet than a 5W that claims to have the same lumens output as the 50W halogen.
  • A number of manufacturers now offer a variety of light colors, for example yellow light rather than the harsh cold daylight colors which many people find unattractive. Dimmable LED’S are also now available.
  • As the investment can be considerable, it is advisable to buy lighting from a better known brand or supplier with strong warranties, as with all energy efficiency you must do the research or contact Solterra for professional counsel.
  • The return on capital expended can provide a payback on the investment of 1 year or less, but only if the LED lighting is good quality, and is correctly installed. A certificate of compliance must be issued by Law after the job is completed.
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  • Hybrid pv solution with underfloor heating and a 200L solar geyser working perfectly.. Clients are #savingmoney every month. Well done #solterracapetown installations team.