LED lighting in the ceiling of the height of 9 m
AB "Lietuvos geležinkeliai" UAB ”Vilniaus lokomotyvų remonto depas” does not fall behind the modern technologies in an area of lighting. The company renovated its premises this year. 400 W power metal halogen illuminators were planned to be installed even at the height of 9 m in an area of more than 3 thousand square metres. However, the executives chose a more rational solution after familiarizing with the newest trends: during the summer, LUMO advanced lighting LED lamps of new generation were switched on in the renovated premises. They are made with Philips Lumileds diodes of extremely high quality. In comparison with LED lighting, halogen lamps have serious disadvantages. They use a lot more electricity energy (in the repair depot one illuminator actually uses 400W). New LUMO 90 type LED illuminators distinguish themselves as very economical – their power is only 150W. Let us compare: if the halogen lamps were illuminating the premises their power would be up to 52.2 kW, and if the LED illuminators were used – only 17.4 kW. It means that the savings reach up to 34.8 kW. Converting this to litas, the savings are more than 80,000 litas a year. Usage costs also must be evaluated: as we know from experience, halogen lamps have to be changed more or less every 3 years. It costs a lot. Light diodes are mechanically stable and especially long-lasting – they can be used for about 70 thousand hours. It means that for many years the company is not going to need to dedicate the expenses for exploitation of lighting. Moreover, lighting regulation system is additionally installed on the premises of locomotive repair depot which regulates the flow of lighting from 100 to 20%. This management additionally allows conserving the expenses of electricity energy.
Not a bit less important is the fact that installed LED illuminators guarantees the company a high quality of lighting. Even the height of the premises actually is 9 m, the overall lighting completely meets the standards and exceeds 550 Lux. Moreover, the LED illuminators of a reliable manufacturer are safe regarding the health of workers, they do not blink or exhaust the eyes. LED are also harmless for the environment.
The investment of UAB “Vilniaus lokomotyvų remonto depas” to LED illuminators has not exceeded the provisioned budget for the lighting of an old type but has been very useful. The overall effect of the project: the expenses of electricity energy are 3 times smaller, exploitation expenses of lighting systems are clearly smaller, and lighting of a high quality. Because of its advantages, LED lighting is expected to bring a high level of payback: no later than over 2-3 years.

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