If you add the term "Bicycle" to the package, you ad 1000% to the price.
This has become the default standard of cheap brightness:
http://www.amazon.com/SUPERNIGHT-TM-Headlight-Rechargeable-Waterproof/dp/B00E91EG1K/ref=sr_1_2?ie=UTF8&qid=1423757891&am...
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