In an average February, Rome has four days that dip below 32 degrees F; the average high is 56, and the average is 40. Paris averages 12 days each February below 32 degrees F; the average high is 45 and the average low is 34. Only you know what constitutes weather that is too cold to enjoy.
A fluorescent lamp or a fluorescent tube is a low pressure mercury-vapor gas-discharge lamp that uses fluorescence to produce visible light. An electric current in the gas excites mercury vapor which produces short-wave ultraviolet light that then causes a phosphor coating on the inside of the bulb to glow.
Incandescent bulbs and halogen bulbs will work with any dimmer, and while the dimmer can be of the less expensive variety, keep in mind others come with additional features. People who want to use fluorescent and LED bulbs should enter the terms dimmable fluorescent light or three-way fluorescent or LED bulb.