I wanted to get a wider beam on my D4Sv2 for use in tight spaces and the standard ‘Floody’ optic was not wide enough for me! I bought 25 and 30 degree optics and they seem to work really well.
Because of high postage fees and a price break from where I bought them from, I ordered 10 of each, so I now have 9 of each remaining to sell.
Here is a comparison of the light pattern from all four of the lenses I have (for reference, I was using the 4000K SST-20 95CRI LED in these images):
If anybody is interested in having one of these I have two eBay listings, although I am also open anyone here who wants to buy direct and avoid the ebay tax. Unfortunately as I’m located in the UK, postage to the US would be expensive at about £5 due to Trump’s postage war against China 
25 Degree EXTRA FLOODY Beam: https://www.ebay.co.uk/itm/164396657804
30 Degree SUPER EXTRA FLOODY Beam: https://www.ebay.co.uk/itm/164396659514