The dark energy density is about 5 × 10-10 joules per cubic meter or about 5 × 10-10 watt-seconds per cubic meter. To run a 100-watt bulb for one second requires 2 × 1011 times the dark energy contained in a single cubic centimeter. Such energy can thus run a 100-watt bulb for about 5 × 10-12 seconds, or five trillionths of a second.
