[Coco] Retro Bright and UV Light.

[Michael Graham]

  I don't remember whether it's A or B, but it's the more dangerous one 
that does the job.  I tried it under a blacklight at first and barely 
made any progress, but out in the sun it was pretty quick.

On 8/30/2010 10:03 PM, Brian Goers wrote:
> What frequency of UV is most effective? UV A or UV B. I don't remember 
> which one will give you a sunburn. But one is safer then the other.