This is our LED Head Unit that is made for the Surefire Classic Handgun Lights

-Full Mil-Spec Construction and Design able to withstand recoil
-3.4mm Thick Tempered Glass Ultra Clear Lens
-Nichia 519A Cool White LED with 850 Lumens Max Output
-Enables the use with both 3V CR123A Primary Cells and 3.7V 16340 Rechargeable Cells
(2.7V-4.5V Regulated Input for Maximum Flexibility)
-Maximum Current Output at 1600mA
-Cool White (5700K) Colour Temperature
-Reverse Polarity Input Protection
-Over-Discharge Protection
-Unique Reflector Design
-Precision Machined Aluminum Reflector
-High Temperature Resistant Orange Peel Coating
-Every Reflector Module is Pre-Focused for the Ultimate Spot

This LED Head Unit provide an increase of over 3 times the output than the original light, turning your classic handgun light into a top performing tactical light.

If your light is one of the "6 Series" 2 cell lights, such as (Model 607, 609, 610, 630, 632, 633, 637, 640, 644, 645)
It will convert it into a 1 cell light which use a single battery. (1 x CR123A Primary Cell or 1 x 3.7V 16340 Rechargeable Cell)
Therefore shortening it making the light shorter providing better control and mobility.
Also avoiding damages to the light when moving about.

Compatible with:

Surefire
Model 307, 307R, 607, 607R
Model 309, 309R, 609, 609R
Model 310, 310R, 610, 610R
Model 330, 330R, 630, 630R
Model 332, 332R, 632, 632R
Model 333, 333R, 633, 633R
Model 337, 337R, 637, 637R
Model 340, 340R, 640, 640R
Model 344, 344AR, 644, 644AR
Model 345, 345AR, 645, 645AR

Runtime:

1 x CR123a Primary Cell: ~1 hour
1 x 3.7V 16340 Rechargeable Battery (750mAH): ~1 hour