SATCO Lighting S11391 4.5W MR16 LED, Silver Finish, 2700K, GU5.3 Base, 360 Lumens, 12V

The lamp is dimmable. On a low voltage system the dimming behavior depends on the transformer as much as the lamp: a magnetic transformer needs an MLV dimmer and an electronic one needs an ELV or LED-rated dimmer. The other trap on a retrofit is load. Replacing several 35 watt halogens with 4.5 watt LEDs can drop the circuit below a legacy dimmer's minimum load and cause flicker or drop-out, so plan on a dimmer rated for LED loads rather than reusing the one that ran halogens.

2700K is the warm white point that matches standard incandescent and halogen, so the S11391 blends with existing halogen MR16s and warm incandescent fixtures rather than shifting a room cooler. Color rendering is 80 CRI. For a fleet standardization across a property, note the color temperature is fixed at 2700K, not field-selectable, so every lamp you order under this model comes out the same. If your spec calls for 3000K or a neutral 3500K, this is not the one to buy.

Damp location rated, so it is fine in a bathroom, a covered walkway, a soffit, or a canopy where it sees humidity but not direct water. It is not wet location rated, so keep it out of open weather, shower fixtures with direct spray, and anywhere it will take rain or hose-down cleaning. The lens is plastic and the base is a mix of metal, plastic, and electronic components.

40 degrees, a flood beam. That is the spread you want for general downlighting in a hallway, lobby, or guest room where you need overlapping pools of light from a run of recessed cans. For punching a tight highlight onto artwork, signage, or a display case, a narrow spot in the 15 to 25 degree range does that job better; a 40 degree flood will wash the surrounding wall instead of isolating the object.

Burning position is universal, so it can be aimed down in a recessed can, up in an uplight or a landscape well light, or horizontally in a track head or cove without affecting rated life. Rated average life is 25,000 hours. In a hospitality or multi-family setting running 12 hours a day, that works out to roughly 5.7 years per lamp before a relamp cycle.

No. The S11391 is not DLC approved, so it will not clear a utility program that requires a DLC listing on the qualified products list. It is FCC compliant for electromagnetic interference, which matters where lamps sit near AV or wireless equipment in a conference room or hotel guest room. If a rebate is driving the project, sort your MR16 selection by DLC status before anything else.

Not a three-way lamp. It is a single output 4.5 watt LED MR16, dimmable through a compatible low voltage dimmer rather than stepping through levels at the socket. It ships in one version only, a gray silver housing, so there is no finish decision to make when ordering. The lens is a lensed LED array rather than an open reflector.