overwintering

overwintering

Hello everybody! The Mister and I are trying to overwinter some hot pepper plants - an ancho and a cayenne. They were accidentally left outside for one frosty night and got frostbite on some of the leaves, which we've pruned off. They are now under grow lights (since we don't have any southern-exposure or other good windows), and we water them when the soil gets dry. We've fertilized them once with low-nitrogen stuff since we've brought them in. They're still alive, but they look a bit haggard - the leaves never quite get turgid, mostly hang, (many have fallen off) and there are some practically naked branches. This is foreboding as the indoor season has barely begun. So my question is this - does anyone have any tips for reviving these poor peppers of which my husband is so fond, and sustaining them through the winter? (All the websearches we've conducted seem to suggest things we're already doing.) A thousand thanks in advance!
poppy?

poppy?

on elephant ears and rubber plants

on elephant ears and rubber plants

my room.

my room.

The Room in the East

The Room in the East

Camouflaged Critter

Camouflaged Critter

Harvest

Harvest