Case makers such as Hussmann and Kysor/Warren are selling new refrigerated cases with LED lighting already equipped in the case. The worldwide market for lighting in refrigerated display cases is huge, especially the retrofit market. In Europe, another common design employs a row of vertical coolers on top and horizontal coolers on the bottom. In horizontal cases, typically there are one or two 4-ft fixtures that run at the top of the case (canopy lighting) and the base of the case (shelf lighting). The lighting in the vertical cases run vertically along each side of the door, and is generally 5-ft tall. Refrigerated display cases are available in many styles and sizes, but the market overall generally comes down to vertical freezer cases with doors and horizontal refrigerated cases without doors. The fastest adoption has been seen in North America, where incentives have shortened the time to ROI. Notably, Walmart has set a goal to use 100% LED lighting in all of its 5366 stores through new construction and retrofitting.Īs will be discussed, the adoption rates of RDL differ among Europe, North America and Asia. 1 and 2) recently installed LED lighting inside and outside its supermarkets in Portugal, which we will cover in more detail below. For instance, Jerónimo Martins Group (Fig. Many grocery stores, specialty shops and convenience marts have decided to implement LED lighting throughout the store and in outside parking lots and gas stations. This merchandizing effect of LED lighting is being applied beyond the refrigerated cases themselves.
So we focused on providing the best light with the best color rendering and greatest uniformity,” said Paul Kelly, vice president of market development for Nualight. “We recognized early on that many company’s products would be within 10% of each other in energy savings. Importantly, the quality of light in the case can also be improved to reduce glare, eliminate hot spots and make the food and packaging more appealing through better color rendering. Fluorescent tubes provide a diffuse light in all directions, whereas LED lighting fixtures have been designed to provide directional illumination at 70-160° as needed in the case.
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