How do you receive 16 bit data through HC-05 Bluetooth Module?

I can already connect to HC-05 easily enough, but I do not know how to receive a 16bit number from the device. I have an app that sends a signal to an HC-05 to turn on some lights. before the lights are on I need to receive three samples from a light sensor that is being sent in a 16bit. I need to receive the data and store it for later use, but through all the tutorials and websites I looked at, I still cannot understand. If someone could point me in the right direction or show me if its not to complicated.

Thank you in advance