Abstract: A compact conditioning system for controlling a volume, comprises: (a) at least one light source, said light source being coupled with a replaceable focusing lens; (b) at least one fan; (c) at least one temperature sensor; (d) control circuitry adapted to receive inputs from said sensor(s) and/or from a user, and to operate said light source(s) and/or said fan(s) as a result thereof; and (e) a housing suitable to house said light source, fan and control circuitry and adapted to be positioned at the top of a structural element defining a closed space.

Abstract: A compact conditioning system for controlling a volume, comprises: (a) at least one light source, said light source being coupled with a replaceable focusing lens; (b) at least one fan; (c) at least one temperature sensor; (d) control circuitry adapted to receive inputs from said sensor(s) and/or from a user, and to operate said light source(s) and/or said fan(s) as a result thereof; and (e) a housing suitable to house said light source, fan and control circuitry and adapted to be positioned at the top of a structural element defining a closed space.

Abstract: A fluid dispensing device using only gravity to provide fluid to plant growing medium, for example soil, to the point of either saturation or field capacity. The fluid dispensing device may comprise a mechanism to cease supply of fluid when a threshold amount of fluid in a plant growing medium is detected. The fluid dispensing device may be used to calculate field capacity of different soils. The invention further discloses a gravity powered device for irrigating an area evenly and at a constant rate of irrigation.

Abstract: The container includes a top case section that defines a top compartment configured to hold a standard package of cigarette rolling papers, and a bottom case section that defines a bottom compartment hingedly connected to a middle case section that acts as the floor of the top compartment and the lid of the bottom compartment. The middle case section may be subdivided into smaller storage regions by interior dividers. The middle case section may also include a latch configuration that secures both the top and bottom section of the case and each may be opened and closed individually. This allows access to either one of the compartments separately or both compartments simultaneously.