TWO OFFPRINTS: Radium and Other Radioactive Substances With a Consideration of Phosphorescent and Fluorescent Substances. The Properties and Applications of Selenium and the Treatment of Disease by the Ultra Violet Light
Radium RA43519122: RL-PAR38 120 DIM 12,5W/230/827 - PAR38-LED for exchange with halogen lamps, warm white light, glass bulb, dimmable, base E27. LED light does not contain UV or IR radiation - RA191220 -
Nu- Ray Sun Lamp - Museum of Radium
Radium LED Lampe 4W (40W Ersatz) nicht dimmbar E27 Sockel : Amazon.de: Lighting