Any question answered...

Do not buy a new light!

Blackburn's have a lifetime guarantee.

Contact whoever sold it to you and they will give you;

If you PM me your email I can foward the email I got sent with the forms. But I'd still just contact the person who sold it to you.

Mine came from Cyclebasket. They were helpful and gave me a cheque for the cost as;

Thanks for the info, bud. I will PM you now.

However, this doesn't solve my lack of rear light in the mean time issue. I will still need a new light!

I put the Flea on the radiator and it has misted up inside so I'm guessing it got wet. Not very impressed! Here's hoping that leaving it on for another 2 hours then putting it back on the charger will do something!