TOSHIBA Chokeless Mercury Lamp Mercury Lamp Ballastless BHRF100110V250WT Set of 2, Unused. Only opened and tested for operation on a new, unused item. Can be used immediately with a household 100V power supply by combining with the IK-SET-BL also listed. No need for a stabilized power supply, and no delicate handling required, making it very easy to use. Ideal for outdoor floodlighting and insect trapping using ultraviolet light at night.