K4306 LED parameters

Hi,
could you please tell how much current draw the LEDs used in the K4306 VU meter and what’s their luminance? I would like to substitute the originals with new LEDs with non-colored ( and, if possible, rectangular, as indicates in the assembly manual) cases.
Thank you!

Leds used are Kingbright L-7113GD, HD & YD.
Driver datasheet indicates how to calculate resistor for led current setting.

Thank you for prompt response!