SATCO Lighting S21286 4W B11 LED, Clear, Medium Base, 90 CRI, 4000K, 120V

Yes on both counts. The S21286 is an enclosed rated lamp, so it can go in a sealed or closed-globe fixture without heat trapping shortening its life, and it carries a Wet location rating for indoor or outdoor use. That makes it usable in covered entry sconces, post lanterns, and exterior candelabra-style fixtures as well as interior chandeliers.

The 4 watt S21286 replaces a 40 watt incandescent and delivers 350 lumens at 120 volts, drawing 0.033 amps. For a property manager swapping a chandelier or a corridor sconce fleet, that's a roughly ten-to-one wattage reduction per socket at the same perceived output.

4000K is a neutral white, cooler and crisper than the 2700K warm glow most people expect from a decorative candle lamp. In a residential chandelier or hospitality dining area it will read noticeably cooler than incandescent. It suits corridors, lobbies, stairwells, laundry and back-of-house areas, retail display, and anywhere you want a clean white. The 90 CRI rating means colors and skin tones still render accurately, which matters in retail and healthcare. The color temperature is fixed, not switch-selectable.

Yes, the S21286 is dimmable on 120V 60Hz line voltage. It is not a three-way lamp, so it won't step through levels in a three-way socket. As with any LED retrofit, pair it with a dimmer rated for LED loads rather than an old incandescent-only rheostat.

Clear glass with an LED filament is the choice when the bulb is visible, in an open chandelier, an exposed-socket sconce, a cage fixture, or a glass-front pendant, because you see the filament rather than a plastic diffuser. The tradeoff is a visible bright point and sharper shadows. If the lamp sits exposed at eye level in a dining or guest space, a frosted or satin B11 softens the glare. Behind a shade or inside a diffuser, the clear version makes no visual difference.

Burning position is universal, so it can be installed base-up, base-down, or horizontal with no effect on rated life. The 300 degree beam spread means light comes off nearly the full lamp, which is what you want in a chandelier or an open sconce where the fixture has no reflector.

Average rated life is 15,000 hours. At roughly 12 hours a day on a lobby or corridor circuit, that's about three and a half years per lamp, which is the argument for using it in chandeliers and high sconces where the relamping cost is a lift and a labor ticket rather than a stepladder.

Yes. The S21286 is listed as Title 24 compliant, which is the box to tick on California residential and multi-family lighting scopes. It is also FCC compliant. It is not a DLC-listed product, so it won't qualify for utility rebate programs that require DLC listing.

Glass envelope with a nickel plated aluminum base, weighing 0.044 lb. The nickel plated base resists corrosion better than bare brass-finish steel, which matters given this lamp is rated for wet locations and exterior fixtures.