These lights were designed from the ground up to improve your ride. Sparse lights are constructed from cast metal, not plastic. Once installed, they are part of your bike. They won't jostle, rattle, or interfere with your cables. The metal chassis is joined by a double-lens, sealed with a silicone gasket to keep everything dry inside and working for a very long time. They're solid, sealed, tamper-resistant, and stupidly bright.
Sparse Fixed Bicycle Light System Introduction from Sparse on Vimeo.
The Spacer Light sits beneath your stem in the stack of spacers. The light fits both 1" and 1 1/8" steer tubes. This integration makes it extremely difficult to steal and keeps the light pointed in your path of travel, visibly seated above the shoulder line of cars, and generally out of harm's way.
The source of illumination in the Spacer Light is a 3 Watt white LED with 3 modes, On, Off, and Blink. The 'On' state is bright enough to light your path ahead. The motion of the 'Blink' State makes you very visible to anyone on or near the roadway.
The Tail Light slips on and clamps down on your seat post. It fits the most common seat post sizes - anything from 27.2mm - 31.8mm. There is no way to remove the light without removing the seat post.
The source of illumination in the Tail Light is a series of board-mounted red LED's - 4 face rear and 4 to the sides. In total, they add up to 1 Watt of output (about 30-50 Lumens). The Tail Light has 3 modes, On, Off, and blink.
Both lights are fueled by a rechargeable Lithium Polymer battery like the one in your phone. We're designing for a 4hr charge - enough to get you to and from work for a week, before you park the bike in the vicinity of an outlet and refill the battery. We're shipping the lights with a 6' micro-USB cable and wall-adapter to supply the power. When you choose your product, you can choose the wall adapter that fits your country. For North America, Japan, and a few countries in Asia, choose UL. For the EU and Russia, choose EU. For the UK, choose UK, And, for Oceania, choose SA. This is not a detailed list. If you are unsure of your nation's standard, send us an email.For countries with several standards you get to choose. Also, our product works with any USB power source. So, you can plug the lights into any wall plug such as with one from a smartphone. Note that if you preordered before we listed all the charger types, we are shipping your order with the charger we understand to be most common in your country.
Note to German customers: The German government recently passed a law forbidding bike lights that blink. We are urgently working on creating a blinkless product to meet the needs of the German market, but this takes time. If you wish to place an order, you must give us a non-German shipping address, and we advise that you keep the lights off the blink setting.