In my experience temps are the main consideration. If a pepper plant gets warmth it will want to grow and if there isn't enough light relative to the warmth it's likely to be problematic, inducing weak growth or stretch. For dormancy, I think Marturo's temps of 51F are coming in at a good level and wouldn't want to be much above or below that. Coupled with some light, but not lots - 4-5 hours/day not too strong - I've gotten good results. I use LED's for OW because they put off less heat, which helps prevent warming the plants out of dormancy and hatching out pests on the plants. I'm not sure what you mean by temps of 27F (below freezing), but if you're comfortable in the same room as the plants I wouldn't expect dormancy, but some level of controlled growth.
That's my two cents