Bath & Body Works Love Letter Nightlight Wallflowers Fragrance Plug. What it does: wafts your favorite, always-on fragrance into any room and brightens it up at the same time. The loveliest little accent to ever grace your wall. Nightlight glows continuously (hello, around-the-clock illumination). Perfect for every (and any) room. Pairs with your favorite Wallflowers fragrance refills (sold separately).