9.4 average score from 18 reviews


Model number: BLS-137
  • Large COB LED area for optimal (side) visibility
  • Strapmount fits on Ø 5 - 42 mm and has self locking USB port for optimal waterproofness
  • Runtime Safety mode: Extends runtime with at least 4 hours in Flash mode
  • Day Flash mode (50lm) for daytime visibility
  • Memory mode: The light goes on in the last used mode
  • Micro USB-cable included
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Signal Rear light

Do you want to give a bright signal towards the traffic from behind? In that case check this powerful, compact and efficient LED rear light. It gives extreme visibility and a lot of light in all directions. And with the silicone strap you mount the light easily on a steer or seatpost. As well horizontally as vertically.

Signal Signal
Signal Signal


  • Max. lumen in steady mode (lm) 20
  • Max. burn time (hours) 31
  • Width (mm) 21
  • Weight (g) 29
  • Length (mm) 70
  • Battery indicator Yes
  • Battery type Lithium Polymer
  • Battery capacity (mAh) 300
  • Battery voltage (V) 3.7
  • Certification StVZO No
  • Charge time (hours) 1:45
  • Light source COB
  • Colors black
  • Lux on 1 meter (lux) 24
  • Max. lumen in flash mode (lm) 50
  • Modes Dayflash, Flash, High, Low, Standard
  • USB type Micro USB
  • USB regarchable Yes
  • Waterproof level IPX7




Regulated lights emit over their entire burn time a constant amount of light due to an electronic regulation system. Is the battery (pack) empty, can’t the same amount of light be emitted anymore, than the light will automatically turn off. Because you don’t want to be surprised, these lamps feature a battery indicator.

USB rechargeable

USB rechargeable

Quick and easy rechargeable by usb.

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