The latest mountain bike lights in the 90X series from MagicShine feature not only bright LEDs, but also a bar-mounted remote control and a connected tail light for improved visibility.
MagicShine is very up front in stating that their lumen claims aren’t 100% guaranteed. For example, their website adds disclaimers like “theoretical lumens, actual lumens may vary” and “we consider [our lumen numbers to be] highly over-stated.” So I’m not really sure how bright the 8 LED, “8,000 lumen” light on display at Interbike really is, but I can tell you it’s very bright. The beam pattern is a little suspect given the simplicity of the design and arrangement of the LEDs, though only real-world testing can confirm.
The 90X series is notable because it includes a bar-mounted remote control for both the main light and an included rear, red light. The rear light connects to the same battery as the main light.
The MJ-902 has 2 LEDs, a theoretical 2,000 lumen output, and sells online for $129.95. The MJ-906 bumps up to 5 LEDs with a theoretical output of 5,000 lumens for $159.95. The 8 LED, 8,000 claimed lumen output light is available online for $239.99
not currently listed on Magicshine’s website, but I’m told it should sell for under $250. All three lights claim to run for 3+ hours on high.
Added info 9/27/16: The 8,000 lumen MagicShine is called the MJ-908 and includes a digital display showing the amount of battery life remaining.