The Planck energy divided by the Planck time

Planck time

In physics, the Planck time, , is the unit of time in the system of natural units known as Planck units. It is the time required for light to travel, in a vacuum, a distance of 1 Planck length...

 is the Planck power, equal to about 3.62831 × 10⁵² W

Watt

The watt is a derived unit of power in the International System of Units , named after the Scottish engineer James Watt . The unit, defined as one joule per second, measures the rate of energy conversion.-Definition:...

. This is an extremely large unit; even gamma-ray bursts, the most luminous phenomena known, have output on the order of 1 × 10⁴⁵ W, less than one ten-millionth of the Planck power.

In terms of the fundamental constants of physics, it is given by

Planck power = .