This module can be used to send data by using infrared light. Commonly used in remote controls.
Specifications:

1. max. current: 20 mA
2. connection: 3 pins, only GND (-) and S is used
3. weight: 2 g
4. dimensions: 35 x 15 x 8 mm
5. note: there is no current limiting resistor on the module

vma316_infosheet1.pdf

wpm316_datasheet.pdf

wpm316a4v01.pdf

ce_rohs_open.pdf