SATCO Lighting S11442 16W, PAR38 LED, Full Spectrum Plant Grow Lamp, Medium Base, 120V

No. The S11442 is a non-dimming lamp. On a dimmer circuit it will flicker, buzz, or fail early, so put it on a plain switch or a timer instead. Timers are the better control for a grow schedule anyway, since you want full output or nothing rather than a reduced level.

Yes, it carries a wet location rating and is listed for both indoor and outdoor use, so a greenhouse, a covered patio, or an unheated propagation area is fine. Burning position is universal, meaning you can point it straight down over a bench, sideways off a wall bracket, or base-up in a can without hurting lamp life.

It reads as normal warm white light, not purple. The lamp is a full spectrum type at 3500K with an 80 CRI, which is a neutral-to-warm white close to what you would see from standard commercial lamping. That matters in a lobby, a hotel atrium, or an office with interior plantings, where a magenta grow light would look wrong. The housing is green and the lens is a white plastic (PS) diffuser.

Rated at 25,000 hours. On a typical 12 hour per day photoperiod that is about 5.7 years of service, or roughly 3.4 years at 20 hours a day. For an MRO or facilities buyer, that is the number to plan relamping against, not a seasonal replacement cycle like the incandescent PAR38 grow lamps it replaces.

The S11442 is not DLC approved, so it will not clear a rebate program that requires a DLC listing. If the rebate is the point of the job, specify a DLC qualified LED lamp instead. The S11442 is FCC compliant, which covers the electromagnetic interference side, and it is marked lawful for sale in California.

It is not a three-way lamp. Screwed into a three-way socket it will run at one output level regardless of the switch position, or may not light at all on the low tap. Use a single-circuit socket. It is also non-dimming, so a plain on/off switch or a timer is the right control.

Fixed at 3500K. There is no field-selectable CCT switch on this lamp, so what you order is what you get in the socket. If you are standardizing a building and need to match existing lamping, 3500K is the value to spec against.

The base is plastic, as is the lens. Plastic bases do not corrode or seize the way an aluminum base can in a humid greenhouse or a wet-rated exterior can, which is a point in its favor for propagation areas. It also means you should hand tighten only, since overtightening a plastic base into a socket can crack the skirt.