Return on investment
Based on usage of 3,000 hours per year (circa 10 hours per day), Return on Investment (ROI) on replacing a 4ft 36W T8 fluorescent tube with an 18W LED equivalent (at a cost of R355.00 each) = 2.9 years on RSA electricity cost alone (R1.70/KWh) (not including the maintenance cost of replacing failed fluorescent tubes).
Yearly Cost Savings
To work out your electricity cost savings per year:
(Conventional energy used (kW) - LED energy used (kW)) x Usage per year (hours) x Electricity cost (R/kWh)
36W T8 tube (+ 6W ballast) retrofit with 18W LED tube example:
((0.036kW + 0.006kW) - (0.018kW)) x 3000hrs x R1.70 = R122.40 saving per tube
57% reduction in CO2 emissions
Reduced Carbon emissions
LEDs convert up to 80% of energy into light. This both reduces electricity costs and dramatically reduces carbon emissions, proving a beneficial choice for both Commercial and Domestic LED lighting installations.
contains mercury, a harmful toxin. LEDs do not. This makes LEDs safer to use and dispose of at the end of their life.
Reduced power consumption
Additional benefits exist for areas that use air conditioning, as the power consumed is reduced due to the lower heat emitted from LED lighting
. This also extends the life of the air conditioning unit because it is not worked so hard.
LEDs do not contain a filament that can be damaged by shock and vibration – making LED one of the most stable light sources available.
Instant light, no flicker
LEDs produce 100% light instantly from switch on, with none of the warm up time required by fluorescents. Plus, they are free of visible flicker – ideal to help prevent discomfort associated with traditional lighting.
The life of LED is between 4 and 40 times greater than traditional products. What's more, they produce consistent light output over their entire life.
Reduced heat and UV
LEDs emit minimal Ultra Violet light (UV). UV light attracts insects and can be harmful to skin, clothing and artwork. Heat emissions are greatly reduced with LED, which means they are cool to touch and perfect for heat sensitive applications.
The true cost of conventional lighting is the maintenance over its lifetime, replacement labour, lamp outlay and disposal costs. With LED, these costs don't exist. LED is a Fit-&-Forget solution.
No disposal costs
LEDs provide not only a green alternative during the time they are operated, but also at the end of their life as they contain no harmful chemicals. The Mercury contained in just one fluorescent lamp is enough to contaminate 30,000 litres of water beyond safe drinking level limits. Fluorescent lamps are therefore classified as 'hazardous waste' and can be difficult and costly to dispose of safely.
Improved staff productivity
Staff productivity can be seen to improve thanks to the pleasant, bright environment created by LED lighting.