Conduit

A conduit is a block that gives nearby players the Conduit Power status effect when powered by placing a certain configuration of blocks.

Usage
When activated, conduits give the "Conduit Power" effect to all underwater players within 42-96 blocks (similarly to beacons). This effect stops the breath meter from decreasing, gives underwater night vision and increases mining speed. Conduits can be activated in any biome and at any height or depth.

To activate, a conduit needs at least 16 prismarine, sea lanterns, or prismarine bricks 2 blocks away on the same X, Y or Z plane. It also needs to be in the center of a 3x3x3 cube of water sources or flowing water. A conduit with the minimum 16 blocks has a range of 42 blocks; every additional block after the 16th adds around 2.3 blocks to the range (specifically, the distance is ). A fully powered conduit (42 blocks) has a range of 96 blocks and also damages hostile mobs underwater within 8 blocks by every 2 seconds.

Trivia

 * When it is activated, the conduit displays the heart of the sea's texture in the center of its model.
 * Despite the conduit's small appearance, its hitbox takes up a full block.

Gallery
Sauerstoffröhre Conduit