Blue Power IP67 Charger completely encapsulated: waterproof, shockproof and ignition protected Water, oil or dirt will not damage the Blue Power IP67 Charger. The casing is made of cast aluminium and the electronics are moulded in resin. Start interrupt The models with suffix (1 Si) feature a second current limited output which is always powered as long as 180 – 265 VAC is present on the input. This output can for example be used to prevent starting of a vehicle before unplugging the battery charger (start interrupt function). The highest efficiency ever! Setting a new industry standard: with 92% efficiency or better, these chargers waste three to four times less heat. And once the battery is fully charged, power consumption reduces to less than a Watt, some five to ten times better than the industry standard. Blue Power IP65 Charger completely encapsulated: waterproof, shockproof and ignition protected. Water, oil or dirt will not damage the Blue Power Charger. The casing is made of cast aluminium and the electronics are moulded in resin.