A diving bell, also known as a 'Wet bell', is a cable-suspended airtight chamber, open at the bottom like a moon pool structure that is lowered underwater. The pressure of the water keeps the air trapped inside the bell. Unlike a submarine the diving bell is not designed to move.
The new lamp from Salto & Sigsgaard, is an attempt to make a pendel-lamp which uses is light source to the full. It reflects the light one time in the aluminum reflector, and at the same time it adjusts the color of the LED lights color temperature.
When admitting that the LED light is orientated, unlike a traditional light bulb, the LED filament is pointed up towards the reflector, with the power cordentering the lamp at the open end.