I had a Magic Shine headlight and it was junk, it lasted 4 months, I tried to get it replaced under warranty and sent it back and they returned the item and I had a UPS code to prove it was delivered, they never bothered to return my dozens of e-mails, nor return any of my dozens of calls. So after about 3 months of frustration I gave up.

I noticed the original poster wanted a cheaper tail light, Dinotte is not cheap at over $150. However the BlackBurn Mars 4 is the brightest AAA or AA battery light on the market tied with Radbot 1000 for brightness, Both the Mars 4 and the Radbot 1000 use the same 1 watt LED bulb but the Mars 4 adds two 1/2 watt leds (one on each side) for side illumination making it far brighter from the side then the Radbot which is nearly impossible to see from the side. But be forewarned, the Mars 4 batteries do not last anywhere near as long as the Blackburn claims, they use 2 aaa bats and they will last about 7 to 8 hours on steady and about 15 to 18 on flashing. Thus you should invest in rechargeable AAA's and carry a spare set in your saddle bag. The Radbot AA bats will last far longer (at least twice as long) due to AA bats and only one led to power. The Mars 4 sells for about $22 and the Radbot 1000 for $25...not much of a difference in price.