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.
For other low-energy bulbs, see LED lamp. A compact fluorescent lamp (CFL), also called compact fluorescent light, energy-saving light, and compact fluorescent tube, is a fluorescent lamp designed to replace an incandescent light bulb; some types fit into light fixtures designed for incandescent bulbs.