Are those modules the ones with the IRF520 MOSFET? If so, be aware that they are not logic level MOSFETs and will not fully turn on with a 5V gate signal*. The FQP30N06L MOSFET that the OP linked in their first post is a much much better choice.
*See the Rds(on) spec and Figure 3 in the IRF520 data sheet.
