I'm trying to use this type of IR Emitter Module to control an existing IR appliance, but it only works at close ranges of about half a meter. Compared to the original remote the light is very dim. I am using an esp8266 and understand that it only outputs 3.3v, but whether I connect it to the esp8266 or an external power source providing 5v the results are the same. I have read up on using transistors etc. to increase current for an IR LED but nothing regarding this type of emitter module which has a data pin, gnd pin, and vcc pin.
Does anyone have a solution for this type of module?