Class 2 is an electrical code and relates to any circuits (including circuits that are not lighting) that are 50 volts or less. The code says if 50v or less it needs to be max 5 amps and or 100 watts, whatever comes first. If you want to use larger drivers you would need to wire in accordance to NEC code.
Absolutely, we are happy to help. All pricing would have to go through our standard channels but we can definitely assist you with any questions or building a BOM.
We will take back a regular stocked product that is in new unused condition for a full refund. You may however have to pay freight and or some processing fees.
We keep it very simple! Everything in our line is 5 year warranty. Our warranty also passes down to the end user as ever product is batched and marked. So yes even you the home owner can claim for warranty.