The 'Blackstone Lights' are a new range of 6 inks (thus far) from Blackstone Inks / JustWrite Pens. As the name suggests, these inks are designed to be lighter and less saturated than the inks the company is becoming well known for - though some of them are still quite vibrant in their own right. Blackstone Lights Orange is a good example of what I'm talking about - along with the green and blue inks, it's quite bright and cheery. Add to that its wetness and flow, and you have the makings of a really good ink.
Won't bore you with additional details - here's a photo, taken in full sunlight with my Samsung Note 8, no attempt to adjust the colours: