SATCO Lighting S22215 8.5W PAR30L LED, 90 CRI, 4000K, 40 degree Beam Angle, Medium Base, 120V

4000K is neutral white, sometimes sold as cool white. It reads clean and slightly blue next to a 2700K or 3000K warm lamp, so if the rest of the ceiling is running warm white, this one will stand out in the same room. It matches well against other 4000K fixtures, which is the common spec in offices, corridors, garages, and back of house. For a fleet of openings, standardize the whole space on one color temperature.

Forty degrees is a flood. It is the general purpose beam for recessed downlighting on a normal ceiling height: broad enough to wash a corridor, a lobby, or general retail floor without leaving scallops between cans. If you are trying to punch light onto a single piece of artwork or a product display from a distance, you want a narrow spot instead, in the 10 to 25 degree range, not this lamp.

90 CRI describes how accurately the lamp renders color against a reference source, on a scale to 100. Ninety is the tier specified where color is being judged: retail merchandising, showrooms, salons, healthcare exam and patient areas, hospitality lobbies, and anywhere paint or fabric or product finish is being looked at. Standard commercial LED lamps commonly sit at 80 CRI, so a 90 CRI lamp is a deliberate upgrade rather than the default. In a warehouse or a parking structure it buys you nothing.

Order Satco S22215. That single number covers the 8.5 watt PAR30L in clear, 90 CRI, 4000K, 40 degree beam, medium base, 120 volt. There is no separate suffix for finish or color temperature on it, so distributors quoting a Satco PAR30L at these specs should be landing on the same MPN.

Clear. That is the only lens finish this lamp is built in, so there is no frosted or diffused version of the same part number. A clear front gives you a more defined beam edge from the 40 degree flood optic, which is what you want in an open recessed can. If your application demands a softened, low-glare face, a clear lens in a shallow trim will show the source.

Dimming behavior is the thing to settle before you buy a case of these. What the lamp specs fix is the electrical side: it is a line voltage 120 volt medium base lamp, so it is wired like the halogen it replaces, with no low voltage transformer in the path. Any control on the circuit has to be an LED-rated device; older incandescent dimmers and some mechanical timers are sized for a much larger resistive load than an 8.5 watt lamp and will flicker or fail to hold a low end.