Portable solar power management system

Abstract

A portable solar power management system includes (i) a solar panel interface to one or more solar panels, (ii) an energy storage interface to one or more energy storage devices, (iii) a charging circuit which routes the electrical currents from the solar panels to the energy storage devices; (iv) a load interface to one or more load devices, the load devices being powered independently on primary and secondary load circuits; and (v) a controller for controlling the operations of solar panel interface, the energy storage interface, the charging circuit the load interface. In addition, a secondary load control circuit and a programmable controller may be provided which routes the electrical currents from to the energy storage devices to the load interface, wherein the programmable controller, based on the sensing signals, also activates and deactivates the secondary load circuit.

1 . A light assembly, comprising:
 a hanger including substantially parallel first and second arms each terminating at an elbow; and   a housing for enclosing a light emitting device, the housing having openings on two opposite sides provided to allow insertion by the elbows of the first and second arms of the hanger, wherein the housing further includes a plurality of grooves radiating from each opening, each groove having a cross section matching a cross section of the first and second arms of the hanger, such that, when the elbows of the hanger are inserted into the openings, a spring action in the first and second arms of the hanger provides a compressive force against the housing so as to securely lock the housing into a fixed position for providing illumination from a desired direction.   
     
     
         2 . The light assembly of  claim 2 , wherein the plurality of groves are provided a predetermined radial angle apart. 
     
     
         3 . The light assembly of  claim 2 , wherein the predetermined angle is 45 degrees. 
     
     
         4 . The light assembly of  claim 2 , wherein the cross section of each groove is semi-circular. 
     
     
         5 . The light assembly of  claim 1 , wherein the housing further includes one or more through hole to allow the housing to be mounted on a flat surface. 
     
     
         6 . The light assembly of  claim 1 , wherein the housing further includes a threaded hole to allow the housing to be secured to a fixture with a matching thread. 
     
     
         7 . The light assembly of  claim 1 , wherein the hanger further comprises a curved portion shaped to allow the light assembly to be hung on a hanger bar.