I would make sure the cell has proper contact(length wise). Depending on the host(solarforce and surefire are quite different i have found) and require little "tweaks". These can be using an extra spring(larger one that sits at the base around the bottom of the drop in) or using a longer cell(some of my surefire's have had to have a magnet on the end of the cell to aid contact, so when shook it keeps in contact with p60.
20% and 100% should be noticeable, so the obvious would be to make sure cell voltage is good.
Its not unusual to have different info on a case, mine have had nichia stickers on the case(goes to get a pic)
The last triple i got was a dual mode nichia, but tint was way off(too cool and would put it 5500k ish). Long story cut short, was returned, the rest of the dual modes were the same so sportac have messed up somewhere. Ended up with a single mode nichia this time which is not ideal but i needed the 4500k tint i am used to with the sportacs. So it now resides in my cooly which is fine being a beefy host and fed on 26650 food.
You can easy remove the little internal silver ring that unscrews , the optics will easily lift out(take care not to scratch or put finger prints over it) and take a pic of LED's. Or from what you see, look on the net for a pic of the nichia to compare to.
