LOCK MODE FEATURE keeps the Swift 500 headlight securely powered off during transport or storage. Unlock / Lock the light by simply holding the power button down for 8-10 seconds. IMPORTANT: THE SWIFT 500 IS SET TO LOCK MODE AT THE FACTORY. UNLOCK BEFORE USE. OPTIMAL VIZ for increased visibility while out on the roadways. Cars and motorcycles are incorporating daytime running lights for increased daylight visibility. And with drivers more distracted than ever, we think cyclists should as well SWIFT FEATURES A SMOOTH 500 LUMEN beam pattern in an ultra compact and lightweight design Vmax+ 150 is NiteRider’s first taillight featuring COB (Chip-on-Board) LEDs, which for cyclists means it packs more punch in a smaller, more compact package