Coloured compact fluorescent spirals at 13W, equivalent to 60W incandescent, in green, red and bug-light yellow on 120V.
The bug-light yellow is the functional one — the wavelength is chosen to attract fewer insects, which is why it sells into porch and patio fixtures rather than as decoration. The green and red are seasonal and event stock.
Low volume but high visibility on an end cap in season. LED equivalents are in LED coloured, and the standard spirals are in CFL spiral T2.