I thought you might like to see my indoor photo set-up. The light tent cube is next to a south-facing window. For sunny days (top photo), I turn on a couple of side lights. I turn on the light on top when a tree blocks some of the sunlight.
On cloudy days like today (bottom photo), I add one more side light. All four lights have compact fluorescent bulbs that have a light temperature of 5500K (Kelvin). That is the same color of light as sunlight. I set a custom white light balance using a photographer's gray card anyway. The light tent adds a bit of blue to the colors if I use the "sunlight" setting and adds too much yellow if I use the "cloudy" setting.
I hope you are all warm and dry today!