A black-out lampshade only allows light through the top and bottom of the shade, limiting the lighting. No light shows through the actual shade. They are pretty shades just not very good lighting.
Black, Black Out Lampshade Restore
The biggest problem with black out shades is the minimal light. Often higher watt bulbs are used to generate more light. The higher watt bulbs damage the shade.
Black Lampshade Restore
This shade is being restored with black linen which will allow light through the shade. Next weekend I will post the restored black linen shade.