LED Lighting Vs Fluorescent Lighting
LED light sources have developed at a rapid rate. Whilst they started off as an alternative to Halogen lighting only they are now able to offer better alternatives to incandescent lamps as well as Florescent Discharge lamps.
The advantages are increased where the application is: Food Environment / Frequent Switching / Cooled environment / Inaccessible Location
The list below shows the advantages of LED over Florescent lamps.
Glass free construction
Integrated control ballast
Life span 50,000hrs
Lower carbon footprint
No mercury or phosphor
Simple clean process if broken
Performance increase if Cool
Excellent Integration with Occupancy Sensors
HMRC ECA compliant
No UV emissions
COP efficiency gain in cooled environment
Light source mainly glass construction
Separate ballast required
Life span 30,000hrs
Higher carbon footprint
Contains mercury and phosphor
Major Issue if broken on site
Performance decrease if cool
Poor performance with occupancy sensors
From increased lighting (LUX) levels and whiter colour temperatures Good lighting on the task and in the workplace is essential for optimal task performance, especially with a progressively aging workforce. The effects of good lighting, extend much further since over the last two decades (medical) science has consistently shown the positive influence of light on health and well-being. Better lighting contributes positively to task performance (in terms of higher speed and lower failure rate), safety and accidents rate, absenteeism, health and well-being. In the metal industry, for example;
- Increasing the lighting level from the minimum required 300 lux to 500 lux leads to an increased Productivity: based on realistic assumptions: more than 3-11%, on average 8 % but certainly to more than 3%.
- For nightshift work at least the same productivity increases can be expected, i.e. 8% to more than 20%.
- Using a good-quality lighting installation, a further increase in productivity of 0.2 to 1.0% is possible.
- The energy consumption (and thus the operating costs) of a good quality lighting installation at the increased level of 500 lux will in most cases be lower than that of the existing installation at 300 lux.
- Increasing the lighting level from 300 lux to 2000 lux increases productivity by 15 to 20%.
Philips Lighting, the Netherlands Ir.W.J.M. van Bommel Ir. G.J. van den Beld Ir. M.H.F. van Ooyen August 2002
Trial and Evaluation
Capital Cost Recovery
Separate finance packages are available for larger projects and cost benefits can be made.