Dedicated flash for panasonic lumix® gx, gm series has vertical bounce range of 0° - 90° and horizontal swivel range of 10° - 60°. autofocus auxiliary lamp helps the camera to focus in low-light situations includes diffuser guide number, (formula): 32, (guide number = distance × f-number) power source: 2x 1.5v "aa" batteries (alkaline, lithium, nicad & nimh) - not included
