Light & Motion have reﬁned the design and increased the power of their Seca 1700 lamp to make it an impressively versatile high performance unit, for those who can afford it.
The head unit is unchanged, but the new mount straps it lower and more securely to the bar to keep it locked on target. It also gets a new reﬂector around its twin rows of three LEDs. The result is a very usable beam with plenty of peripheral coverage, decent long-range illumination and loads of ‘right in front’ light for low-speed techy work.
The large, easy-to-hit top button lets you ﬂick between power settings to extend already reasonable life from the small, hardshell battery. You also get a helmet mount, an extension cable and a belt clip for versatility, and if you need more run time you can opt for the double-capacity enduro version.
As you’d hope for a dive lights specialist, waterprooﬁng is excellent with massive, totally sealed plugs on the battery lead junction. Reliability is excellent and running temperatures are now much cooler, despite the increased power.
Light & motion seca 1700 race beam shot: Russell Burton/Future Publishing
This article was originally published in What Mountain Bike magazine, available on Apple Newsstand and Zinio.