Specification:
Product name: 2LED 17mm DIY Lighting Switch Set
Suit for: Astrolux SS/SC/S2/S3/and BLF X5/X6 LED Flashlight or this driver:
Size:17mm diameter(switch)
         14mm diameter (switch cover)
         17mm diameter (gasket)
         19mm diameter (retain ring)
Features:it could lighting when you click on the switch,help you find the flashlight on the night much easier.
Note:Not all the flashlights could use this switch,some of the flashlights could lighting but the UI will not work normal.

Package included:
1 x 2LED 17mm DIY Lighting Switch Set (not included flashlight)
1 x Transparent switch cover
1 x Retain ring
1 x Gasket