I'VE BEEN AN ELECTRONICS ENGINEER FOR 30 YEARS.
PURCHASED 15 MODULES.
INPUT VOLTAGE 8.8V DC
OUTPUT 5.0V @ 50 mA.
WELL WITHIN LISTED OPERATING PARAMETERS.
2 MODULES DEAD WITHIN MOMENTS.
3 MODULES HAS MASSIVE OUTPUT FLUCTUATION.
10 MODULES DOA.
DO NOT RECOMMEND THIS ITEM.