stebenda.blogerka.cz (») | 28. 6. 2019 | přečteno: 360×
Whether colorful bunnies, little hearts or little sharks with reflective tapes for children's clothing the imagination knows no bounds. But the effect is very limited. Most reflectors made of reflective material do not throw back enough light by far. Ten out of twelve tested reflectors failed. A minimum value for the light reflection is given by the European standard EN 13356. číst dál