The FL-300R is an easy-to-operate versatile external flash for your PEN. With an equivalent GN (Guide Number) of 28 at ISO 200, you can accomplish flash shooting with stable light and optimum brightness. It functions as a bounce flash and wireless remote flash with enough power for most any typical shooting situation. Photographers can use it in tandem with the camera's built-in, pop-up flash, or as an alternative to it. Additionally, it has the ability to function wirelessly through a remote control function on the E-P3, E-PL3 and E-PM1.
Guide Number 28 at ISO 200 (when built-in wide panel is not in use), Guide Number 16 at ISO 200 (when built-in wide panel is in use)