Sigma

Sigma 2017 Buster 300 Lumen Front Bike Light

4.4 (122 reviews)

Illuminate Your Path with Confidence Introducing the Sigma Buster 300 Front Light, designed for reliable visibility during night rides and races. This compact and durable light delivers a powerful 300-lumen output, ensuring you stay safe and seen on any terrain. Key Features: High Output: 3...

$39.99*
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*Price sourced from Amazon.com. Last updated:Jun 27, 2026.Price and availability are subject to change.

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Overview

Illuminate Your Path with Confidence

Introducing the Sigma Buster 300 Front Light, designed for reliable visibility during night rides and races. This compact and durable light delivers a powerful 300-lumen output, ensuring you stay safe and seen on any terrain.

Key Features:

  • High Output: 300 lumens of bright, focused light.
  • Multiple Modes: Four light modes for versatile use.
  • Durable Design: Splash-resistant construction for all-weather reliability.
  • Easy Mounting: 360° adjustable bracket for flexible positioning.
  • USB Rechargeable: Conveniently recharge via micro USB.

Specifications:

  • Brand: Sigma
  • Model: 2017
  • Brightness: 300 Lumens
  • Beam Range: 70 Meters
  • Light Modes: Power, Standard, Eco, Flashing
  • Burn Time: Up to 13 Hours
  • Water Resistance: IPX4
  • Mounting: 360° Adjustable Bracket
  • Recharge: Micro-USB
  • Weight: 103 Grams

Key Features

BIKE FRONT LIGHT OR HEAD LIGHT: Sigma Buster 300 is a compact and sturdy power light from Sigma's Buster series of power lights, for perfect fit on any bike or helmet. Buster 300 has a light output of 300 lumens and a 70 m beam range from three CREE LEDs, to brighten up your night rides and off-road adventures in the city or the woods. Buster 300 also works as a flash light when you are hiking or walking your dog outdoors.

FOUR LIGHT MODES: Buster 300 has four modes of operation to select from - power, standard, eco, and flashing. The burn time for the battery depends on the mode. A fully charged battery will stay for 1.5 hours in power mode, 3 hours in standard mode, 6 hours in eco mode, or 13 hours in flashing mode. Switch on protection ensures that light is not turned on accidentally, and requires a double click for turning on.

EASY MOUNTING & DURABLE: Weighing just 103 gm, Buster 300 is easy to mount using the 360° adjustable bracket included, with no additional tools required. Buster 300 with an IPX4 Splash rating can be used outdoors for a long time, making it your reliable companion on rainy day outings.

EASY MICRO-USB CHARGING: Buster 300 comes with an integrated lithium-ion battery that can be easily recharged through the integrated micro USB charge function within 3 hours. The charging can be done even when the light is in operation. Run time varies between 1.5 to 13 hours depending on the mode of operation. Two stage-battery/charge indicator shows the remaining battery capacity as well as charging status.

ACCESSORIES: Buster 300 includes Light, USB cable, and adapter for action camera bracket. Following can be purchased separately: 00145 Silicone Mount, 00460 Spare Screw-Bracket Mount, 00467 Helmet Bracket Set, 00461 Adapter for Action Camera Bracket, 18552 Charger + Micro USB Cable, 18553 Micro USB Cable.

Specifications

Light Output
300 Lumens
Beam Range
70 m
LEDs
Three CREE LEDs
Light Modes
Power, Standard, Eco, Flashing
Power Mode Burn Time
1.5 hours
Standard Mode Burn Time
3 hours
Eco Mode Burn Time
6 hours
Flashing Mode Burn Time
13 hours
Weight
103 gm
Mounting
360° adjustable bracket (included)
Water Resistance
IPX4 Splash rating
Charging
Micro USB
Charging Time
3 hours

Pros & Cons

👍 Pros

  • Provides a substantial 300 lumen light output with a 70-meter beam range from its three CREE LEDs.
  • Offers versatile usage with four distinct light modes: power, standard, eco, and flashing, for various scenarios.
  • Features a compact and lightweight design, weighing only 103 grams, for easy portability and mounting.
  • Includes IPX4 splash rating, ensuring reliable outdoor performance even during rainy day rides.
  • Boasts an integrated micro USB charging function that allows recharging within 3 hours, even while in use.
  • The double-click switch-on protection prevents accidental activation and conserves battery life.

👎 Cons

  • Maximum runtime in the powerful 300 lumen 'power mode' is limited to 1.5 hours, requiring frequent recharging for longer high-intensity rides.
  • The light relies on an integrated lithium-ion battery, meaning it cannot be quickly swapped for fresh batteries on extended trips.
  • While an action camera bracket adapter is included, specific mounting accessories like a silicone mount or helmet bracket must be purchased separately.
  • The IPX4 splash rating indicates resistance to splashes but does not confirm full waterproofing for submersion or heavy downpours.
  • The two-stage battery indicator might not offer precise percentage tracking of remaining battery capacity.

Frequently Asked Questions

The Sigma Buster 300 delivers a maximum light output of 300 lumens, providing a beam range of up to 70 meters using three CREE LEDs.
Battery life varies by mode: 1.5 hours in power mode, 3 hours in standard mode, 6 hours in eco mode, and 13 hours in flashing mode.
Yes, the Buster 300 features an IPX4 splash rating, making it suitable for outdoor use during rainy conditions.
It recharges via an integrated micro USB port, and a full charge takes approximately 3 hours. Charging can occur while the light is in operation.
Yes, it is designed to also function as a handheld flashlight, useful for hiking or walking your dog outdoors.
The light comes with a USB cable and an adapter for an action camera bracket. Silicone mounts and helmet brackets are sold separately.
Yes, it includes a switch-on protection mechanism that requires a double click to activate the light, preventing accidental activation.