I bought defy stain extreme for my IPE deck; we live in Canada so the weather is harsh on the wood mostly during the winter. I can't express how wonderful the product made the wood come back to the original condition; my deck looks amazing. Now that we started to get snow, it seems as if it repels it!
It was very easy to apply (is almost "like water") and it dried very fast. It was a little bit pricy but I'm extremely satisfied. Totally worth it.

The only reason to not apply in direct sunlight is that it will be harder to get it on evenly as it will dry quicker. It does not matter at all once the stain is applied.

I ask for how many hours must pass after finishing the staining before it gets sun. Is an hour or two okay or must it be fully cloudy out to apply the stain?

Not sure what you mean. The sun can hit the deck anytime after completed.

How long must the freshly applied extreme stain be not exposed to full sun?

Best to apply evenly and do not over apply. You want the stain to penetrate into the wood, not dry on top of the wood.

Just ordered Defy semi Transparent Lite Walnut for an old deck that I power washed and sanded. I appreciate any tips you may have from prior experience. I ordered the free video.
Thanks, Steve

Best to use both the wood cleaner and the wood brightener for maximum preparation.

I am confused- reviewing your website and videos, one person asked about "re-doing" their chairs in the future and you stated to use the cleaner then the brightener but after watching the video on Maintenance, it was stated to just use the Brightener and then add your 1 coat of stain.