Hi friends, sorry here:
The Astrolux FT03 XHP50.2 and FT03 SST40-W use the same MCPCB printed with “SST40-W”, but the beads are different. Please do not worry about this, because the copper DTP MCPCB only plays the role of carrying the LED, it will not affect any parameters of the flashlight.
Specification & Features:
Emitter: one LED, cool white or neutral white , mounted on copper DTP MCPCB
Color temperature: cool white: 6000-6500K; natural white: 5700K
Flux: 4300 lumen
Range: 735 meters
Firmware: Tom E’s open-source GPL NarsilM v1.3 adapted by Texas_Ace
 By default the FT03 is set to use the very intuitive Narsil smooth RAMPING UI. Instant access to a TURBO mode is also provided.
 A more conventional discrete level MODE-SET UI is available as an alternative. Any one of 12 pre- defined mode-sets can be selected.
 MOMENTARY mode is useful for signaling purposes or rapidly/briefly lighting up targets.
Forbidden to use a broken skin or broken battery, which is easy to cause a short circuit.
It is recommended to use 26650 battery, the flashlight can be used to the best.
Battery: One 26650 cell (or a 21700/18650 cell) Cells are not included.
Driver: Texas Avenger FET Driver with charging
Reflector: High quality smooth reflector
Lens: Glass with anti-reflective coating
Body: Aluminum alloy with Type III hard-coat anodizing
Button: Silicone rubber
Ingress rating: Equivalent to IPX7, do not immerse in liquids
Impact resistance: Up to 1.5 meters
Weight: Approximately 295g without cells
Dimensions: 170mm*69.5mm*34.5 (length*head diameter*body diameter)
1 x Astrolux FT03
2 x Spare Waterproof O-rings
1 x 26650/18650 to 21700 battery adapter( the transparent tube)
1 x Lanyard
1 x User Manual