I love to read before bedtime, so the headboard hangs the lamp. 15 yield 25 watts with a conventional basement for sale are rarely. There is always a 15 watt bulbs with a small base (for the refrigerator) and 7 watts (for a night light), but they have a small base (mining) and they will not screw them into the usual cartridge. Everyone and I invented to make an adapter. For a picture, everything is visible from a conventional light bulb, 2 wires are soldered to it that are screwed into the small cartridge. And the lumps are inserted into the large base. Mine case! But the daughter found another use of such an adapter - it screwed 7 watt light bulb In a 3-wheel luster. When you turn on one key, there are 2 bright lamps and when you turn on the other, 7 watts are on, as a night!