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Serfas ULSA-8 Orion Blast Front Bike Light

sku# 149505
Serfas - ULSA-8 Orion Blast Front Bike Light
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Product Info

You're a mile from home, unsure of how much juice your bike light has left. It's an uncomfortable situation, and one that the Serfas ULSA-8 Orion Blast Front Bike Light aims to solve. On top of a crazy amount of candlepower blasting from its small size, this light has a tiny speaker to send you a warning that you have ten minutes left at your current level. The choice is now yours: switch to a lower lighting setting for some more time, or put the hammer down and race home. We'd suggest the latter.

Product Details


300 Lumens

42 Micro LEDs


Aero-BracketSerfas's new Aero-Bracket fits almost any post or application on a bike, letting you put your light where you want it.


USB Rechargeable Li-Polymer Battery


Solid ModesHigh (200 Lumens): 1 hr runtime, Medium (100 Lumens): 2.25 hrs & Low (60 Lumens): 3.5 hrs

Flash ModesHigh Rapid (300 Lumens): 6.25 hrs runtime, High Slow (300 Lumens): 12 hrs & Low (60 Lumens): 28.5 hrs

Additional Features

"Blast" Audible Warning System (AWS)When the battery reaches 10 minutes of runtime, in its current mode, the light will emit a long beep followed immediately by a short beep. Sound will continue every minute.


  • Light Output (lm): 300
  • Weight (g): 55
  • Rechargeable: Yes
  • Warranty: Limited Lifetime



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