Abstract: The present disclosure provides an emergency lighting system that includes battery charging circuitry to charge a rechargeable battery based on available AC power; and emergency power level control circuitry configured to detect a power outage of the AC power and determine an available output capacity (ACP) of the battery based on a normalized output capacity of the battery; the emergency power level control circuitry is further configured to determine a lighting protocol to deliver a foldback power level of the emergency power level control circuitry, the lighting protocol being based on determining if ACP is less than a selected value; wherein the foldback power having a first power level Preduced, where Preduced is less than FRP, delivered for a first time period, a second ramped down power level delivered for a ramp down time period tramp, and a third minimum power level Pmin delivered for a third time period.

Abstract: The present disclosure provides an emergency lighting system that includes battery charging circuitry to charge a rechargeable battery based on available AC power; and emergency power level control circuitry configured to detect a power outage of the AC power and determine an available output capacity (ACP) of the battery based on a normalized output capacity of the battery; the emergency power level control circuitry is further configured to determine a lighting protocol to deliver a foldback power level of the emergency power level control circuitry, the lighting protocol being based on determining if ACP is less than a selected value; wherein the foldback power having a first power level Preduced, where Preduced is less than FRP, delivered for a first time period, a second ramped down power level delivered for a ramp down time period tramp, and a third minimum power level Pmin delivered for a third time period.

Abstract: The present invention relates to carbon fixation systems, wherein an inorganic carbon source is converted to acetyl-CoA. A system for the generation of acetyl-Coenzyme A (acetyl-CoA), comprising components necessary for the biochemical conversion of an inorganic carbon source into acetyl-CoA, wherein said components comprise: i. a source of reducing equivalents; ii. a light-dependent ion pump that generates an electrochemical ion gradient independently of the generation of reducing equivalents; and iii. a redox-dependent ion pump that generates an electrochemical ion gradient independently of a net change in the number of reducing equivalents.