Home | Marine Aids to Navigation | Standalone Lanterns LED Marine Lantern M840 7 NMMax. Range IP68 Sealing 12 VDC Nominal Voltage Bluetooth The M840 is a marine lantern with a LED light source with a range of up to 7 NM. It is available with two vertical divergences, 8º and 10º, so it is ideal for floating applications where there is a 12VDC or 24VDC power source. This lantern includes Sabik Bluetooth® Control with programming via Bluetooth (through a mobile application) in its standard version, allowing the user to read data and adjust its settings at a distance of up to 50 meters. Request moreinformation about LED Marine Lantern M840