Lighting within your home is very important, especially in a vacant home with no overhead ceiling lights. The most important element to lighting is that it is balanced and casts no shadows. Using a 60 watt bulb is usually best, but a 75 watt may be better in a really dark or extra large room. After Furniture placement, make sure the lights are kitty-corner from each other and not all on one side. If they must be on one side, then consider placing a floor lamp across from them to create the desired balance.
It is much darker during the winter months so light your home as much as possible. It will create welcomeness and warmth, instead of feeling scary and unfamiliar. Some rooms may have just one dim ceiling light, this could be a good opportunity to add table or floor lamps.
Lighting is also important for photos. Walk through each room to see if the light looks balanced. Does it feel warm and inviting? Take a picture with your phone to see if there are shadows. If the light is unbalanced, it will show a flash to one side of the room. Have you noticed in homes online that are not lit properly look dark and dingy. You may not be able to see in a corner, or distinguish room from room. You want to highlight each room so the potential buyer can see everything that your home has to offer.
Final Thought… “A good intention, with a bad approach, often leads to a poor result.” Thomas A. Edison