This is ob1-RC 4-Channel Professional LED System V4 Type TR. The successor of V3.1 fits RC Trucks / Crawlers / Short Courses / Monster.

• Power supply by BEC: 5 – 7.4V Max
• Max 4 RC channels (Min 2-3 channels
• CH1: Steering (Left / Right winker lamp)
• CH2: Throttle (2-level brightness brake lamp)
• CH3: Manual hazard lamp
• CH4: Toggle lamps On/ Off
  • V4 Smart Toggle (Start Toggle from any position of RC channel, total 5 Toggle steps)
• Flash mode (All LED) Toggle by pressing the [SET] switch anytime (or use CH3) after power on,
  • V4 adds 3 more, a total of 10 flashing styles
• LED driving Max 112 pcs, 46 pcs more than V3

• Reverse lamp with Reverse beeper (CF plug default setting, which is located in Sub unit)
  • CF plug is also good for installing a Bumper lamp
• Low Voltage Detection (LVD), Buzzer uses as an audible alarm
• Fine-tune your system by entering Setup Mode, for example:
• Auto hazard lamp (when CH3 is not a Manual hazard)
• Power Options (Low/ Mid/ High / Extra High) for all High power plugs, each driving 2-16 LED
  • V4 adds 3 more HP plugs, a total 6,
  • ROF is HP / HV (High voltage) plug, good for LED light bar
  • If the HIGH / EX-HIGH Power option is used, external BEC is required
• V4 adds a Winker lamp control option, which can disable the Winker lamp
• V4 adds Crawler mode

• 15 LED plugs:
  • FR1-2 (Front lamp)
  • BR1 (Brake lamp)
  • L1-2, R1-2 (Left & Right winkers)
  • AUX1-2 (AUX lamp)
  • FOG / ROF (Fog / Roof lamp)
  • REV (Reverse lamp)
  • V4 adds CL / CR (Chassis lamp) 
  • V4 adds CF (Chassis lamp in Sub unit)
• CH2 Auto-calibration on every power, Plug & Play
• Main / Sub Unit design, uses 1 cable to connect each other
• External BEC may require if using high-power options

• Input Voltage: 5 - 7.4V (Powered by ESC's BEC)
• Battery type for LVD: LiPo 2S (User define: MAX 25.2V)
• Support RC System:
  • All Normal Response RC Systems:PCM/ PPM (FM)/ AM
  • Some High Response RC Systems, for example:
  • Futaba : FASST-C1, C2 / S-FHSS / T-FHSS (SR)
  • Sanwa : NOR / SHR Mode
• Dimension (Excludes cables):
  • Main Unit : 45mm (L), 41.3mm (W), 11.7mm (H)
  • Sub Unit : 24.5mm (L), 18.5mm (W), 12mm (H)
• Weight : MAIN / SUB Unit : 14g / 10g

• Main Unit x 1
• Sub Unit x 1
• Main Cable x 1
• Set switch cable x 1
• Extend LED cable x 1
• 2S battery cable x 1
• User Manual x 1 (English / Traditional Chinese)
• Buzzer x 1
• Front LED cable x 1 (5mm high brightness WHITE LED 2P)
• Brake LED cable x 1 (5mm high brightness RED LED 2P)
• Left / Right LED cable x 2 (3mm YELLOW LED 2P)
• Left / Right LED cable x 2 (5mm YELLOW LED 1P)