SATCO Lighting S29817 15W, A19 LED, Frosted, 4000K, Medium Base, 220 degree Beam Angle, 120V

4000K is a neutral white, noticeably crisper than the 2700K warm white most residential tenants expect. For apartment living rooms and bedrooms, a 2700K or 3000K lamp usually reads better. 4000K suits corridors, laundry rooms, stairwells, garages, basements, and back-of-house areas where you want the space to look bright and clean. Property managers often standardize 4000K in common areas and keep warmer lamps in the units.

Yes, the S29817 is a dimmable lamp. It needs an LED-compatible (electronic low voltage or LED-rated) dimmer, not an old incandescent rotary or leading-edge unit, and performance is best when the dimmer is loaded within its stated minimum load. If you are replacing incandescent bulbs on a legacy dimmer, plan on swapping the dimmer too.

It is a wide-distribution lamp, not a directional one. The 220 degree beam angle combined with the frosted diffuser spreads light nearly all the way around the bulb, so it works in table lamps with shades, bare-socket ceiling fixtures, and wall sconces where you need light going sideways and down. The frost also hides the LED diodes, so you do not get hot spots through a thin shade. For downward-only throw in a recessed can, a BR or PAR lamp is the better choice.

Four things decide whether the lamps look the same from door to door: the 4000K color temperature, the 1600 lumen output, the frosted finish, and the medium base. Mixing a 3000K lamp into the same corridor as 4000K is immediately visible, and mixing 800 lumen and 1600 lumen lamps in the same fixture row shows too. The S29817 is sold in one configuration (frost), so there is no finish decision to make when you reorder, just confirm the part number S29817.

The S29817 is rated 80+ CRI, which is the normal benchmark for general-purpose commercial and residential lighting: colors read accurately enough for offices, corridors, classrooms, hotel back-of-house, and most retail. Where color judgment is the point of the space, such as a paint department, salon, gallery, or apparel fitting area, buyers usually specify 90+ CRI instead.

Each lamp weighs 0.11 lb, so even a full case adds very little weight. That matters mainly for lightweight pendant and swag fixtures or anything hung from a flexible cord, where it is well under any practical load concern.