Increasing a range may actualy decrease sales (paradox of choice) and to my knowledge there has not been any research on whether lighting impacts wine sales.
What we do know, thanks to research by North, Hargreaves & McKendrick 1999, is that music can prime customer behaviour.
In weeks where French music was played in a bottle shop, 77% of wine sold was French.
In weeks where German music played, 73% of wine sold was German.
When customers were asked whether music has influenced their decision, 86% said it did not affect them.
The lesson? We are all influenced by environmental cues, or "primes", even though we may not be consciously aware of them. As a business you need to pay attention to how the environment you have created is affecting your customers.