9 Apparatus for converting electronic radiation to electrical energy, namely, photovoltaic solar-thermal hybrid modules; energy monitoring devices, namely electric switches and switch boxes; natural and propane gas safety equipment, namely, explosion safeguards and reverse-flow safeguards for combustible-gases and oxygen in the nature of safety shields and reverse-flow safety valves and safety valves for containers and pipelines; gas-pressure regulators; power interruption safety apparatus, namely, wires and cables; automatic burner ignition and safety shut-off apparatus in the nature of burner controllers and pressure regulators for quick disconnect; thermostats; emergency safety equipment, namely, beacon lights, gas, masks, barometers, marker buoys, signaling buoys, directional compasses, safety and protective helmets; energy monitoring equipment, namely, gas detectors for monitoring the presence of gas; personal security alarms and fire alarms; fuel pumps for service stations for natural gas and propane gas powered vehicles; gas meters; pressure gauges