I've used this one as the only light source for my succulents throughout the winter and it works great! No signs of etiolation year round. I'm sure it would work for P. Peperomioides as well.

https://www.amazon.com/dp/B01N51OJ82/ref=cm_sw_r_apan_i_CGTJ7TCXE21GWE0BEH9P