LED Lighting Case Study – Germany

LED undercabinet lighting

Under Cabinet Lighting

(Germany) For under cabinet lighting, normal light sources are not suitable since they are wide beam lighting. LED lighting is the best choice for under cabinet lighting since it emits directional light and can concentrate the light on the specified area. This case is about under cabinet lighting in Germany.

Since under cabinet lighting is down lighting and accent lighting, LED down lighting solution will be the best option for it. The house owner developed a set of requirements for any potential solution. He wanted a solution that would meet or exceed the light output and light quality of incandescent and fluorescent lighting. And he wanted a solution that could be easily installed without having to replace the existing fixtures.

After communicating with FOBSUN sales person and engineer, they determined to use FOBSUN LED lighting solution, and FOBSUN FCL-D9076-3W-H LED down light was chosen as the final solution.

The house owner installed 20 pieces of FOBSUN FCL-D9076-3W-H LED down lights in the kitchen as shown in the table below. The table also shows the hours of operation for each installation.

#    Incandescent Wattage    Location           Hours/year
8    20w                               Cabinet            4380 hours

Business Case Analysis
The house owner conducted an analysis to determine the economic feasibility of using FOBSUN LED lighting. This analysis considered several factors including,

Energy savings
Capital cost
Maintenance savings
Reduction of hazardous materials

Energy Savings
Energy savings was the original driver for this project, and the savings were expected to be significant using the latest LED lighting technology. Compared to incandescent bulbs, each of the FCL-D9076-3W-H lights consumes 3 watts. Using the hours of operation and incandescent wattage from the table above, the energy savings are as follows:

Incandescent lamps: 700.8kwh/year
FOBSUN FCL-D9076-3W-H LED lights: 105.12kwh/year
Savings: 595.68kwh/year

The house owner pays $0.17/kwh for its electricity yielding an annual savings of $101.2656.

Capital Cost
The capital cost of the LED down lights for this project was $300.

Maintenance Savings
The long service life of the FCL-D9076-3W-H down lights eliminates the maintenance cost associated with changing light bulbs (the replacement bulb cost and the associated labor). The approximate maintenance cost savings is $100/year using very conservative estimates for the labor and lamp costs.

Using the estimates above, the calculated time to payback for this project is slightly less than 1.5 years. Using only the energy savings, the time to payback is slightly less than 3 years.

Future Plans
The house owner is very pleased with the light quality and the appearance of the FCL-D9076-3W-H lights, and has identified additional applications for the product in order to increase energy savings.


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