This snapshot illustrates the relative sizes of
the smallest and the largest (as well as the brightest) flashbulbs ever
made. Left to right: the GE AG-1B "peanut" bulb; in the middle the
Meggaflash
PF-330 "floodflash" bulb; and right the GE Mazda Type 75 photoflash foil
bulb. The PF-330 burns for nearly two seconds, giving off a brilliant
blue-white light. Its main use is in high speed movie cinematography, and
has a limited use underground. The 330's primary use underground
is in large cave chamber photography, but its $50 price tag is extremely
limiting!