A LED lamp tube connectable to a conventional lamp holder is disclosed to include a circuit board, multiple arrays of LEDs (light emitting diodes) installed in the circuit board, an outer tubular shell that accommodates the circuit board and the LEDs, and two electric connectors provided at the two ends...http://www.google.de/patents/US20070070631?utm_source=gb-gplus-sharePatent US20070070631 - [LED LAMP TUBE]![Patent US20070070631 - [LED LAMP TUBE] Patent US20070070631 - [LED LAMP TUBE]](http://www.google.de/patents?id=wqWbAAAAEBAJ&printsec=frontcover&img=1&zoom=1)