I use this light combination on urban streets at night, Works great! I get more notice from motorists at night then during the day. The flash mode seems to be the most effective. That was the main reason for the purchase. It's a light to be seen with , not for navigation. It also keeps the cops off my back. I like the fact that I can switch both lights on while still riding. They are easy to remove, so if I remember they will not be stolen ( have lost several before). The only reason I didn't give this item 5 stars, I'm not sure about battery life. So far I'm still on the original set, so that looks good as well. Think the package said 40hrs in the flash mode. I have exceeded that time. Bottom line I'm happy with this purchase.
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