Florescent Lamps Work Best With a C Electricity

Hot cathode lamps were the earliest ones to be manufactured for mass market. Inside of this long glass tube, there is a coating of florescent powder on the inside surface. Also inside the tube is low pressure argone gas and liquid mr mercury. A pulse of voltage creates an arc between the cathodes,. starting from one cathode and travelling to the other. As the arc passes through this vaporized mercury, it gives off ultra violet light. But hey, i hear you say ultra violet light is outside the visible spectrum for we puny humans. Ha ha, ha, puny humans I say that is true.