This page is dedicated to some custom built projects.
This light is built on the ZY-T13. It has a 66mm aspheric lens, a fully programmable custom circuit board, a solid copper MCPCB. It has four different user interfaces with six different modes in each UIF. This light is the current unofficial world record holder for the farthest throwing hunting flashlight. It puts out 75Kcd of RED light!(75,000Cd) That is more than 50% more than the next farthest throwing flashlight. This is a prototype and not currently for sale. Here is a link to the build thread http://budgetlightforum.com/node/20583#node-20583
Unmodified ZY-T13 and ZY-T13 with 66mm aspheric lens
A shorty version of the ZY-T13. Utilizes a single 18650 li-ion battery and a custom machined battery tube.
1/1/2014 I just finished a ZY-T13 with a red XPE-2 P3, drilled and tapped the housing for 2.5mm x.45 machine screws to attach the SinkPad bedded in a very thin layer of AS5, and the original circuit was modified to deliver .84A(approx 1.68Aat the emitter) at the tail, the hardest I have ever driven an XPE-2 for a customer light. This new T13 puts out 51Kcd with a stock reflector and 88.8Kcd with a 66mm aspheric! It has less than 2% drop in output after 10 minutes running. I can assure you that this is the farthest throwing hunting flashlight in the world with an ANSI beam distance of 595 meters(650 yds)