
Why Optical Lenses Matter in Refrigerated Display Lighting — And Why Standard T8/T5 Tubes Fall Short
Lighting inside refrigerated display cases is far more complex than general room illumination. Supermarkets and convenience stores need lighting that not only makes food look fresh and appealing but also performs reliably in cold, humid environments. Unlike bare LED tubes that emit light in all directions, optical lenses precisely control the beam angle, directing light toward the merchandise rather than wasting it on the back panel or into the customer’s eyes.








