Use an opal light bulb if you have an ordinary lamp shade or lamp and want an even, diffused distribution of light.

Use a clear light bulb if you have a lamp shade or lamp with a perforated or cut-out pattern or other airy, open design and want the pattern to cast effects on the wall and ceiling.

Special waste handling may be required. Please contact your local authorities for more information.

You need to pull the strings quite hard to open and close the shade.