These same or work differently?? Thanks!
Work differently.
Email me for details, my answer might be construed as bullying or bashing.
Greg
Is one better than the other? I have the bottom one.
I have the bottom one also and it has pulsed output which made my engine motors sing.
I added a 15uf non-polarized capacitor to the output to stop the awful noise.
I could have had a defective unit, I had nothing to compare it to.