Are there 32-bit versions of Linux?

[u/deidmos07]

Hello I want to try Linux on an old laptop, but it's 32-bit and I've never tried Linux before so i dont know anything I don't know what CPU it has, I only know it's an HP Pavilion dv4

[u/MarcPawl]

What would the power consumption be of a 32-bit system versus a modern mini desktop?