SATCO Lighting S21248 4W G40 LED, Clear, Medium Base, 90 CRI, 2700K, 120V

The 4 watt G40 is a dimmable lamp. Keep in mind a 4 watt load is very low, so an older high-minimum-load incandescent dimmer may flicker or not drop all the way down; an LED-rated dimmer gives the smoothest range, especially in vanity or bath-bar runs where several of these share one circuit.

It puts out 350 lumens at 4 watts. That is in the neighborhood of a 40 watt incandescent globe, so it works as a one-for-one swap in a bath bar, mirror light, or decorative fixture where a 40W G40 was used. If the fixture was running 60W globes, expect noticeably less light.

Clear glass leaves the LED filament/diodes visible, which is what you want in open vanity bars, pendants, and dressing-room mirrors where the bulb is part of the look. It also throws more sparkle and more visible glare than a frosted globe. If guests sit in direct sight of the lamp, as in a hotel bath, a frosted or white globe is the kinder choice.

Yes, that is the combination specified for mirror and grooming lighting. 2700K is warm white, matching the color of the incandescent globes these fixtures were built around, and the 90+ CRI renders skin tones and fabric colors accurately rather than the washed-out look of low-CRI lamps. For a multi-family or hospitality retrofit it keeps new lamps consistent with existing warm-white fixtures.

Order Satco S21248. That one number covers the lamp as specified: 4 watt G40 LED, clear, medium base, 90+ CRI, 2700K, 120 volt, dimmable. There is a single configuration, clear only, so there are no finish or color temperature options to call out on the PO. Each lamp weighs 0.209 lb, which is useful for estimating freight on larger quantities.

The lamp uses a glass globe on a nickel plated aluminum base. The aluminum is there to pull heat off the LED, and the nickel plating resists corrosion in damp bath environments. It is still a glass bulb, so handle it like one during turns and punch lists.

Satco publishes a PDF spec sheet for the S21248 that carries the full lamp data beyond the headline specs of 4W, 350 lumens, 90+ CRI, 2700K and 120V. It is linked in the product documentation for the lamp.