Blackburn Mars 3.0 Flasher Rear Bicycle Light

This light is fantastic! Simple to install, very sturdy and solid, and brighter than bright! I think the side lights are a great feature, giving terrific visibility even in the darkest dark. I keep it on the chase mode which to me is better than flashing, keeping one of the LEDs lit at all times. I recommend this light very highly for great visibility and for its solid construction.

The headline says it all. The blink feature stopped working altogether. Time to dig up the receipt and send it back

This product is horribly over-packaged and inappropriately over-engineered. The day after I bought mine, I opened up the packaging and discovered that, to change batteries, it was necessary to extract three very small screws which were too small to be opened with any standard cycle-tool or coin. I did a trial run at home, in the comfort of my living room, and I realized that this was a non-starter. I commute year-round in eastern Canada so there is a high probability that a battery change would be necessary in the dark (obviously), and possibly when cold, raining, or snowing. I can almost guarantee a dropped screw or two while attempting this. To make it worse, corrosion from road salt sprayed up while riding would compromise the whole screw arrangement. This aspect of the design is completely counter-intuitive if night riding is a regular occurrence and makes absolutely no sense at all. For the casual or recreational rider who only rides in nice weather on weekends in the non-winter months, this might not be a bad lighting system, as long as they carry a tiny screw-driver (about the same size as those used for adjusting eye-glasses, perhaps slightly larger). This is the first time I've ever seen this type of arrangement - everything I've previously used required only a coin or the edge of a house-key.

If you are a serious commuter do not get this light.

I returned this to the bike shop at the earliest opportunity, without ever using it, and bought a $7.00 tail-light at MEC (Canada's equivalent to REI).

The tail light comprises of extremely bright L.E.D.s that not only shine to the rear but also to the sides of the bike. The only downfall is the cumbersome clip which is far from sturdy....

Mine fell off while in front of a bus and the next thing I knew it was broken into 3 pieces....but I'll buy another if not attempt to call the company and see what they can do. All and all I'd recommend it...but don't rely on the clip which keeps it mounted to the bike....

Have 2 of these. I even carry one on my motorcycles in case I crash and end up off the road to help in being seen if need be. These are honestly SO bright (I used to work in Law Enforcement), that I consider them far more useful than simply a bicycle safety item. It can be used in so many different ways, one should be carried in everything you use for transportation & recreation....