This a19 household bulb has an easy slide lever to hide, reveal and dim light making it permissible to use on Shabbat
No special hardware, lamp, or light fixture necessary to operate this light bulb. Light bulb fits any medium base bedside lamp, living room lamp, or any other lighting fixture
Reading in the dark or sleeping in light doesn’t make for a restful Shabbat. Whether you’re home or traveling, the ShabBulb offers manual light control without compromise
This multi-volt (110-240 volts) bulb makes it compatible with international fixtures, making it ideal for travel or a great gift for anyone
Endorsed and certified by the OU, Belz kosher supervision and many other orthodox rabbis, see packaging for detail