I've seen battery change how to but want to get at the lense, if I get the battery out can I get at the lense easily? I've brought it in the house overnight to warm it but made no difference.
I'd have a word with Exposure. It suggests the sealing has gone, and they're famed for their goodwill. I'd not went to compromise that by self-meddling (and I'm a prolific meddler!)
I'd agree with the above, internal condensation would say a seal has gone, Id call them and see what they say.
Recently I had to return an Exposure lamp to them because there was condensation behind the lens. The total cost was the postage to them, plus £21 for Exposure to dry the internals, and fit a new seal.
On the one hand, the seal should not have failed.
On the other hand, I was without the lamp for just a week.