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Thanks to temperature control: - better evaporation of oxalic acid is achieved at the lowest possible temperature without running the risk that it, dissociating at higher temperatures, will lose effectiveness. - time is saved because there is no need to de-power and cool the sublimator between one treatment and the next treatment duration 1:30 minutes per Beehive - battery lasts longer - can run for thousands of treatment cycles. IN ADDITION: - the sublimator stops working before it has completely discharged (and therefore before it has ruined) the battery. - The electrical circuit is insulated from metal parts, so unlike other sublimators, there is no risk of short-circuit if several sublimators powered by the same battery come into contact with each other. Power supply characteristics: 12 volts - 120 watts (Battery not included). Treatment duration: about 1:30 minutes for 2 grams and 40 seconds for 1 gram oxalic acid (3 minutes if cooling the bowl in water between treatments). The oxalic acid is placed in the bowl which will be inserted into the flight opening. As the bowl is heated, the oxalic acid evaporates. A mist is thus formed in the Beehive that coats the bees and all surfaces with a thin layer of oxalic acid crystals. These small crystals are borne well by the bees but have a lethal action on varroa. The bowl is attached to a solid handle from which the 3-meter cable equipped with terminals for electrical connection departs. This sublimator complies with the European Directives, and therefore has a CE mark, and complies with the Rohs Directive on the restriction of the use of hazardous substances in electrical and electronic equipment.