Any interest in a 4D Mag mod, using a JimmyM JM-PhD-D1 regulator, Kiu high temperature socket, and PVC sleeve that can hold 5xIMR26500? The regulator can be end-user adjusted via a trimpot to provide a wide range of voltages to the bulb, allowing you to run bulbs such as the WA1111, WA1331, WA1185, Osram 64250, Osram 64440IRC, Osram 64623, Philips 5761, the various Hikaris, FM1909, and many others. Unlike direct drive incandescents, this light is regulated and will deliver constant output for the run time duration that the cells can provide. Also, unlike with direct drive, you set the regulated voltage to the bulb so you don't have to worry about matching battery voltage to bulb voltage to avoid
. The regulator also has soft start, low batt warning, and overtemp warning.
This is the regulator:
The regulator is installed under the aluminum Kiu base that is attached to the mod'ed D Mag switch (an Osram 64623 is installed in this particular setup):
A reflector view of a blue 4D Mag623 mod: