Given the growing demand for fresh products, the need for refrigerated space is increasing in logistics centers and supermarkets. Appropriate lighting is essential in refrigerated warehouses because it helps to preserve the quality of stored food and helps employees to perform their work safely. Effective lighting must also take into account optimization of capital investment and maintenance costs.
After refrigeration, lighting in refrigerated environments is one of the highest operating costs. With temperatures as low as -40 · C for negative cold chambers, lighting solutions in refrigerated areas must be sufficiently resistant to withstand the environmental conditions to which they are exposed, including low temperatures and humidity and maintenance costs.
As low as possible
The duality between light and cold is a crucial issue in the low temperature storage industry.
Temperatures in refrigerated storage ranges from 0 to 15 degrees (positive chamber) while freezing chambers (negative chamber) can go down to -40 degrees Celsius. Therefore, lamps and luminaires must meet higher requirements in terms of operating conditions. With conventional luminaires equipped with high intensity discharge (HID) or high pressure Sodium (HPS) light sources, energy consumption is high, as is heat production. In addition, lamp changes are frequent, ignition times are long and, therefore, sensor control systems are less efficient. These types of lamps take time to reach their maximum luminous flux and must therefore remain permanently on.
On the contrary, LED light sources consume less energy and produce less heat than conventional luminaires. Thus, LED luminaires reduce the thermal contribution of the lighting system and thus reduce the cooling costs of the refrigeration system of the installations and make the investment more profitable. The energy efficiency of LED luminaires is thus even greater in refrigerated areas.
In a very low temperature environment, LEDs guarantee an immediate and constant luminous flux
Unlike conventional luminaires with high intensity discharge (HID) or high-pressure Sodium (HPS) light sources that struggle to light at very low temperatures, the LED lights immediately light up to ensure high luminous flux and Constant and can be used with sensor control systems. They also lose less light intensity compared to many conventional light sources. Thanks to LEDs such as the ORION luminaire, the quality of lighting is better in this type of environment. A high degree of protection and sealed envelopes are essential for luminaires suitable for these areas.
LEDs reduce maintenance costs
In general, maintenance in refrigerated warehouses is more difficult and expensive because of the very low temperatures. Installation and maintenance work can not last very long in a very cold environment. Lamp changes of conventional luminaires are required often. Bbecause their ignition at low temperatures is laborious, it is more efficient to leave them switeched on permanently. The low ambient temperatures make it possible to extend the lifetime of the LEDs, which is an advantage.
Here again, the LED, Orion, Silver or Thunder models for industrial applications with their high protection factor make it possible to simplify and reduce installation and maintenance costs since they are easier to install and require much less maintenance than conventional luminaires.