energy efficient light bulbs

The selection includes several LED bulbs and one traditional incandescent bulb. Listings label items as either "LED" or "Incandescent."

In this group lumens range from about 415 to 1,100 while wattage ranges from 8.0 to 40.0 watts. The LED listings generally show lower wattage for the same or higher lumen output compared with the incandescent example.

Color temperatures range from warm 2700 K up to daylight 5000 K, with some listings indicating tunable or variable color temperature. Reported CRI values span from about 80 up to 99.

Advertised lifespans vary: the incandescent example lists about 1.4 years, many LED listings are around 13.7 years, and some LED entries show longer lifespans up to roughly 22–22.8 years.

All listings use the standard Edison medium screw base (E26). Common shapes shown include A15, A19, and A21.

Options include starter kits that include a bridge for full smart control and tunable white, bulbs that connect directly to a 2.4 GHz Wi‑Fi network for app and voice control, and color-changing bulbs that use an included remote without Wi‑Fi or an app.

Estimated yearly energy costs in the listings range from about $0.96 up to $4.82. The higher value applies to the incandescent example, while the lower values are typical for the LED listings.

Warranty coverage varies: some LED listings show a 5 Year Limited Warranty or a 3 Year Limited Warranty, while at least one incandescent listing indicates "No Applicable Warranty."

Dusk-to-dawn bulbs use a built-in light sensor to turn on at dusk and off at dawn without an app or Wi‑Fi. Rechargeable battery-backup bulbs require an initial charge (about 10 hours) and provide multiple hours of illumination during outages, often with a handheld flashlight mode available.