Logisys 4" Cold Cathode Light Kit with Single Tube, 3.0mm Tube Diameter, Green The Logisys CLK4 4" Cold Cathode Light Kit (Green) with Single light tube has a dual inverter and PCI mounted On/Off switch. Define your case by adding a cold cathode florescent light (CCFL) kit to your case. Cold cathodes emit a neon looking glow, but they do so producing very little heat for the amount of light they give off, making them a standard choice by enthusiasts for lighting up computer cases. A cold cathode florescent light kit will add flare to any case.

Logisys 4" Cold Cathode Light Kit with Single Tube, 3.0mm Tube Diameter, Green The Logisys CLK4 4" Cold Cathode Light Kit (Green) with Single light tube has a dual inverter and PCI mounted On/Off switch. Define your case by adding a cold cathode florescent light (CCFL) kit to your case. Cold cathodes emit a neon looking glow, but they do so producing very little heat for the amount of light they give off, making them a standard choice by enthusiasts for lighting up computer cases. A cold cathode florescent light kit will add flare to any case.