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Discussion Starter · #1 ·
I built a Dinotte-style tailight using a 7135 circuit board that I bought from Dealextreme. It had been working really well. About a week ago I was flicking between the various modes. It used to have high, medium, and low, and it had a constant flash, and an S.O.S. pattern. Now, all it will do is run on a dim, constant flash. Can't make it do anything else. I've tried new batteries, and flicking the switch on and off but nothing works.
Please help. I feel really naked riding in traffic without this light.
 

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Discussion Starter · #2 ·
Just in case anyone is wondering about this, I fixed the problem. Seems the voltage was too low. For some reason I hve been using 2AA batteries-3 volts to power the system. I switched to 4 battereies - 6 volts - and everything's working fine. I think it's meant to run off of 6 volts. I don't know why I went to only 3.
 
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