A19 vs A21 Light Bulbs, Blog

4.8 (742) · $ 26.50 · In stock

Two standard light bulb base sizes are available today: A19 and A21. Although dozens of other designs and options are in the marketplace, most homes and businesses use these options for their everyday lighting needs.
When comparing A19 vs. A21 light bulbs, the primary difference is the size. You can find higher lumens options with a more extensive base, but the rest of the technology remains the same.

Everything You Need to Know About A21 Bulbs

EcoSmart 60-Watt Equivalent A19 CEC Bluetooth Speaker E26 Medium Base LED Light Bulb with Selectable Color Temperature (1-Pack) BTOM605CCTCAESM - The Home Depot