Shat­-R-­Shield’s CFLs offer superior performance with longer life and lower wattages, resulting in lower utility costs, fewer relamping cycles and safety from the risks of broken glass. The non­-yellowing silicone coating will safely contain virtually all glass, phosphors and mercury if the lamp is broken. Uses up to 75% less energy­­ — saves you over $55.00 in energy costs over the life of the lamp.