Extension Tubes

These extension tubes allow you to extend your runtime by adding extra cell(s).  If your light has been modified, you will need to double check to make sure that the driver you are using can handle the extra voltage. 

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Convoy L2 2x18650 2x26650 Unibody Tube - Block-style Knurling
This replacement tube gives you full-time 2x26650 capability without an extension along with incredi..
$7.95
Convoy L4 Extension Tube
This extension tube allows you to extend your L4's runtime by adding an extra 18650 battery. &n..
$4.79
Supfire M2-Z Extension Tube (For Modified Light)
This extension tube will allow you to run use additional 18650 batteries on your M2-Z.  This is..
$1.85
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