Let’s get the initial reaction out of the way:
Holy Toledo, $125 is a lotta cash for a taillight!!! OMG, LOL, SMH, etc.
OK, now shake off the bad attitude and read on. Or don’t. I know I was curious what a $125 taillight offers.
The most interesting feature of this light is an accelerometer activated “brake light”. The light senses rapid deceleration and ups the brightness, much like the brake lights on your car or your 1983 RZ350. I’m pretty curious what drivers thought about the brake light feature, if anything at all. I didn’t notice a difference in drivers’ behavior, but without a real scientific study, it would be pretty hard to make a definitive statement about this. I can say with some authority that I don’t think the brake light makes me any less safe, and my gut feeling it that it is a great feature and one we’ll see on more taillights in the future. I rarely ride in groups, but can image this feature being a nice safety feature for those dudes (it is always dudes) who hop, uninvited, into your draft for a free pull down the bike path.
The Rotlight also has an ambient light sensor. As the night gets darker, the light drops its brightness down a few notches, but cranks it back up when it senses brighter lights, such as headlights. Pretty slick, and a good way to conserve battery life on long rides while keeping the safety factor high.
There are four modes to chose from: steady, flash, pulse, and steady-pulse. Steady and flash are self explanatory. Pulse is a less abrupt flash mode and steady-pulse adds the pulse (not flash) mode to a steady beam of light. I’ve quickly become a fan of the steady-pulse mode. It seems to be a great middle ground between the calmer steady mode and the attention-getting (and blood pressure-raising) flash modes of most lights.
And finally, the light can be adjusted to one of four brightness settings in each mode. At the brightest 2 watt mode you get 160 lumens of red light, the lowest 0.1 watts is 10 lumens. Run times are below. Changing all these setting with a single button interface isn’t the most intuitive thing. Day-to-day operation is fine, but digging deeper to adjust brightness or turn the light sensor or brake light features on and off requires the owners manual nearby. I just kept the pdf saved in my phone for reference.
Mode Steady Blink Pulse Wave+Pulse
0.1W 30h 60h — 25h
0.25W 12h 24h 24h 10h
0.5W 6h 12h 12h 5h
1W 3h 6h 6h 2:30h
2W 1:30h 3h 3h —
The light includes rubber straps in two lengths for any tube between 22 and 55 mm. The back of the light is angled to keep it straight on most common seat tube angles, but it isn’t adjustable for alternate mounting locations like seat stays. Lupine sent along a seat rail mount for the light as well, a $20 option. There are also options for blue or red light bodies, or a red lens instead of the stock clear.
I’ve been lucky enough to review quite a few Lupine products and each time I’ve come away impressed. For riders that are shopping for sturdy but feature-laden lights, Lupine is perhaps the best place to start looking. If price is the number one shopping concern, obviously there are plenty of less expensive options out there. Once set up as I wanted, the Rotlicht was no harder to operate than anything else on the market, but offers a level of customization second to none.
Lupine continues to release class-leading lights to the market, and the Rotlicht is no different. If you love riding with the latest technology, the Rotlicht is your huckleberry.