Sinewave Cycles Beacon Dynamo Headlight


Product Overview

The Beacon may be the ultimate dynamo light for off-road use and bikepacking.  The broad, even beam illuminates all obstacles in your way, including obstructions or hazards above the horizon line that a cutoff, German-style beam would keep in the dark.  The USB output reliably charges most small electronics and the power input feature provides flicker-free light at any speed using your external cache battery.

We keep Black and Silver Beacons in stock.  Other colors, custom anodizing or Mix-and-Match color options are available also.  A short production lead time may be required for some custom orders.  Get in touch if you'd like to place a custom order and we'll make it happen!

Need a handlebar mount?  We like the Schmidt Headlight Bracket, especially on Jones Bars or Moloko Bars.  The B+M Handlebar Mount is a great option for flat bars or drop bars if you want the light in line with the centerline of your bike. 


Made in the USA: All Sinewave products are made in the USA.  The Beacon is the only commercially available dynamo light made in the US.

Integrated USB Charger: Charge your phone, GPS, or any other USB device directly from the Beacon; no need for a separate charger.

Power Input Option: An external, off-the-shelf USB battery pack can be connected to maintain bright, flicker-free light even when stopped or riding slowly.  Any available dynamo power replaces battery power until reaching a speed when all power is provided by the dynamo and the battery is no longer used.  The necessary USB-to-DC input cable is included.

750 Lumens: Lots of light, suitable for any style of riding. 

Broad, Symmetrical Beam Pattern: Ideal choice for off-road riding.

Superior Brightness and Reduced Flicker at Low and Medium Speeds: Dynamo power is optimized at low-to-medium speeds, reaching 200 lumens at just 5 MPH, 500 lumens at 8 MPH, 650 lumens at 10 MPH, and 750 lumens at 13 MPH.

Charger Priority Mode: Intelligently balances power between light and charger to optimize simultaneous use.  This feature works best when the light is being used as a daytime running light. 

Standlight: A supercapacitor, charged while riding, provides about 5 minutes of standlight when stopped.

Color Options: We are able to mix-and-match different colors for the front, middle, and back of the Beacon.  Pick a combination that matches your bike or represents your country or team.

Mounting Options: The 10mm mounting tab is compatible with mounting hardware from B&M, Supernova, Schmidt, etc.

Compact Design: L x W x H - 58 x 42 x 42mm; 115g (includes 36" dynamo wire)

Taillight Output: A taillight output is available and is controlled by the headlight. 

Weatherproof: Designed to be used in any conditions.  Multiple seals protect against water ingress, electronics are potted in epoxy and all connectors are designed for resistance to the elements.

3-Year Warranty: The Beacon is built to last and Sinewave stand behind their products 100%.