The FW3A is a project from the BLF & TLF flashlight forums. It was designed by Fritz15 and manufactured by Lumintop.

It runs an open source firmware called Andúril, created and maintained by Toykeeper.

Review by FLASHAHOLICS

• Emitter: 3 Cree XP-L Hi, Nichia 219CT, and Luminus SST20 LED
• Optic: Standard TIR optical lens
• Flux: ~2800 lm (XP-L Hi)
• Intensity: ~10 000cd ANSI throw ~200 m (XP-L Hi)
• User interfaces:
  [1] Defaulted SMOOTH RAMPING. Instant access to TURBO mode is also provided.
  [2] STEPPED RAMPING UI.
  [3] MOMENTARY mode.
  [4] MUGGLE mode.
  [5] Electronic LOCKOUT.
• Other functions: Battery check, sunset, beacon, tactical strobe, party strobe, bike flasher, candlelight, lightning storm
• Battery: One 18650 cell. An unprotected cell is recommended. Max. length 66mm. Cell is not included.
• Driver: FET+7+1 driver. Low parasitic drain while OFF
• Body: Aluminum with hard-coat anodizing
• Body color options: Grey, Blue, Purple, Army Green
• Switch: Electronic tail switch
• Ingress rating: Equivalent to IPX8
• Weight: Approximately 53 g without cells
• Size: 25.5 mm Ø head x 92.5 mm length.

Lumintop Marketing 

Andúril CheatSheet