GE AG-1 bulbs represent the next evolution in miniaturization. "AG" stands for All-Glass, referring to the fact that these tiny "jellybean" bulbs lack a metal base—the electrical contacts are simply wires folded over the glass nub at the bottom. These are the Clear version (indicated by the white tip on the bulb icon), which were primarily used for Black & White photography or with color film if a blue filter was used on the flash reflector. They utilize a "rhenium igniter," which GE guaranteed would fire even with weak batteries. These tiny bulbs were the standard for 1960s consumer cameras like the Kodak Instamatic (before the FlipFlash/Magicube took over).