Abstract: A cable lamp which is powered by a low-voltage battery and which comprises a cable (10). Fitted on one end of the cable (10) is fitting (14) for a fluorescent bulb (21), while the other end of the cable has fitted thereon a battery connection (30, 40) for connecting both cable conductors (11, 12) to respective battery terminals. The lamp also includes an electronic HF ignition (22) for igniting the bulb. The ignition (22) is adapted for both AC and DC mains voltages and is connected directly to terminal clip (30) that has a converter (18) which converts the battery low-voltage to DC mains voltage. The converter (18) is encapsulated in a radiation impervious housing (322, 323, 324) which forms on the one hand a high-frequency transformer component of the converter (18) and a converter cooling element on the other hand.