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Portland Design WorksAsteroid USB Tail Light


Item # PDW001I

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  • One Color, One Size ($29.00)
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Item # PDW001I

Mighty bright from a tiny light.

Portland Design Works crafted the Asteroid USB Tail Light for the urban commuter seeking powerful illumination and added safety when you're cruising around after dark. This compact tail light features a double-click lens that toggles through its flash, pulse, and steady lighting modes. Its faceted lens projects light across a wider swath for increased visibility to passing traffic. Best of all, the USB-rechargeable battery lasts up to 35 hours of continuous use and rapidly charges by plugging into any USB port or wall outlet.
  • Compact tail light for commutes and night rides
  • Faceted lens projects 25 lumens across wide swath
  • Three lighting modes: pulse, flash, and steady
  • USB-rechargeable battery lasts up to 35 hours
  • Weather-resistant design withstands wet weather
  • Includes seatpost mount and micro USB charging cable

California Proposition 65


Cancer and Reproductive Harm - P65Warnings.ca.gov

Tech Specs
Bulbsfaceted lens
Power SourceUSB-rechargeable battery
Modesflash, pulse, steady
Lumens25 lumens
Burn Time[flash] 35 hours, [pulse] 6.5 hours, [steady] 4.5 hours
Mountrubberized seatpost mount
Waterproofyes, resistant to showers and road spray
Includesmicro USB charging cable, rubberized seatpost mount
Recommended Usecommuting
Manufacturer Warrantylimited lifetime

Claimed Weight

Claimed weights are provided by the vendor.

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Actual weights are measured in-house by the Competitive Cyclist team.

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What do you think about this product?


>Rating: 4

Nice light

I've used it several times
True to size

Does great for brightness, duration, ease of installation, and charging. I normally drain to zero and fully charge between rides. Because of rain, my last gap between rides was maybe 2 weeks. The battery was already almost dead from sitting in the garage, turned off.

>Rating: 5

Bright, lasts long time, easy to charge

I've put it through the wringer
True to size

Bright, lasts a long time, easy to charge

>Rating: 1

Nice light, but won’t keep charge

I've used it several times

I like how it functions. However, it can’t seem to hold a charge like other lights I have used. After a 90 min ride at the fast blinking mode, I would expect it to have at least another hour left. When I try to go out for a ride a couple of days later, it no longer has any charge left (i.e., it won’t even blink once). Not worth the money and I will return it.

>Rating: 5

Love this tail light

I've used it several times

While I've only had the PD Asteroid for a few months, it has become my "go to" tail light. I really like the "double tap" on/off switch. I find it easier to toggle from the saddle as compared with lights that use "press and hold". The fastener uses a double hook, which feels much more secure than my other tail lights. The light and strap are completely integrated, as opposed to a quick release like the Niterider Solas. While I like the Niterider Solas (I've owned two), I broke a strap during a wreck and I lost one when I guess I didn't attach the light to the strap correctly and it was thrown during a ride. This is not intended to bag on the Solas, it's a good product, but I feel the PD Asteroid has a more solid connection to the bike. I can't say how well it will wear yet, but I have used it probably 15 times, a few of those in the rain and it still functions as expected. In all, I'm very happy with this light and am hoping I can get a few years out of it. Will report back when I have any updates. Update: Good news / Bad news Bad news, the clicker stopped working after an especially sandy and wet morning ride. Could not turn it off and there was no way to open the light to clean it out. So I can say, based on this experience, the light is best for city, pavement, commuter work. While trying to fix it, I submerged it over and over and it kept working, so I think it's just the combination of sand and moisture that killed it. Ok, now the good news. Portland Design Works customer service is amazing. They responded to my email within a few hours, didn't give me any static for purchasing the wrong light for my riding style, recommended a new light and had it in the mail while the Astroid was still blinking. All that with good humor and kindness. I will be purchasing PDW accessories again!