Any light that we perceive as White Light contains the complete bandwidth of the spectrum a plant can and will use.
Thus bottom line as long as it is white light and strong enough you are good to go to grow plants. It is Full Spectrum from the plant side.
The thing is what do you personally like to see, this cannot be determined with a number. In general, in the trade it is offered in Degree Kelvin - #K.
2700K = warm white we generally see as a Yellowish white.
6500K = Natural (neutral) white. Generally seen as the most natural colour.
8000K + = Cold White we generally see as Blueish white.
Nowadays in the LED industry CRI is often used (Colour Rendition Index) a higher number up to CRI 10 stands for more truthfully colour display. Whatever that may be. It still remains something strictly personal.
Pick something in between that is aesthetically pleasing to your eyes. Plants will grow under it anyway.
Regarding low profile builds you probably have to go with what it is made from. In most cases 6500K that you cannot adjust. Then it is what it is after purchase if you're content or not. Lights adjustable in colour are more expensive High Profile lights.
What i read here on the forum is most people using the more or less affordable Chihiros series aquarium lights above their tanks, most seem to be very content with it.
Reviews given on their products are generally positive.
But there is no absolute need to go with lights designed for aquarium. Lots of people including me are using garden LED floodlights or some different LED lights.
Good PAR is difficult to determine upfront, lights generally come in LUMEN and also this doesn't say everything. How much useful light reaches the plants, in the end, is depended on several factors and not only the initial power of the light. But if you experience good plant growth, PAR is obviously enough.