Sign & Digital Graphics

October '17

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S I G N & D I G I T A L G R A P H I C S • October 2017 • 19 in these tapes may be extremely strong and resistant to elemental changes, the substrates to which the tapes adhere can be suspect and inconsistently cleaned and prepared. Therefore, many manufacturers recommend or require that modules mount to channel letter backs using addi- tional mechanical means of attachment. Without a doubt, there are sign makers who have experienced the frustration of trying to use the double-sided foam tape feature on the back of a module, only to find it difficult, time consuming, and tedious to peel off the release liner. Those complaints have been heard and as a result, some module manufacturers now provide LED sign modules with an extra length of the release liner on the double-sided foam tape creating an effec- tive tab to grab and peel, saving time and reducing frustration. Mounting an LED sign module to the back of a channel letter or to the back of a single-sided cabinet sign using the provided screw hole is pretty straight for- ward. The hole can be just about any- where on a small or short module. When you get into larger or longer modules, the location of the hole become more important. Longer modules really need LED sign modules have evolved significantly over the years—from better, brighter chips to new lens technologies and even mechanical improvements. The SignBOX II system from Sloan LED creates a grid of light and is designed for new or retrofit sign cabinets with depths over five inches. (Image courtesy of Sloan LED) Images of pools of light from four adjacent sign modules showing results from a traditional wide batwing beam versus a square lens wide batwing beam. (Image courtesy of OSRAM)

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