What are some of the best-selling daylight (5000k) light bulbs?

One of our best-selling daylight (5000k) light bulbs is the <a href="https://www.homedepot.com/p/Feit-Electric-300W-Equivalent-Corn-Cob-E26-E39-Motion-Dusk-To-Dawn-High-Lumen-HID-Utility-LED-Light-Bulb-Daylight-5000K-1-Pack-C5000-5KDDMM-LEDHDRP/312524336?emt=plpfaq_2504_lightbulbs" style="text-decoration: underline;">300W Equivalent Corn Cob E26/E39 Motion & Dusk To Dawn High Lumen HID Utility LED Light Bulb Daylight 5000K (1-Pack)</a>.

Are tube lights only used in commercial settings, or can I use them at home?

While commonly used in garages and basements, <a href="https://www.homedepot.com/b/Lighting-Light-Bulbs-Tube-Lights/N-5yc1vZbm3z?catStyle=ShowProducts?emt=plpfaq_2504_lightbulbs" style="text-decoration: underline;">tube lights</a>, especially LED tube lights, are becoming increasingly popular for their energy efficiency and bright light in home workshops, under-cabinet lighting, and even for creating a modern, minimalist look in certain rooms. They offer a lot of options for different areas of the house.

For bulbs labeled A19, A15, and A21, what does the "A" mean, and how do those numbers relate to the bulb?

The "A" refers to the traditional, pear-shaped bulb, a common style for homes. The number indicates the bulb's diameter at its widest point, in eighths of an inch, so an <a href="https://www.homedepot.com/b/Lighting-Light-Bulbs/A19/N-5yc1vZbmbuZ1z0vvrd?emt=plpfaq_2504_lightbulbs" style="text-decoration: underline;">A19 bulb</a> is 19/8 inches wide, an <a href="https://www.homedepot.com/b/Lighting-Light-Bulbs/A21/N-5yc1vZbmbuZ1z0vvpm?emt=plpfaq_2504_lightbulbs" style="text-decoration: underline;">A21</a> is slightly larger at 21/8 inches, and an <a href="https://www.homedepot.com/b/Lighting-Light-Bulbs/A15/N-5yc1vZbmbuZ1z0vvqn?emt=plpfaq_2504_lightbulbs" style="text-decoration: underline;">A15</a> is smaller at 15/8. Knowing this helps when choosing the right size for your fixtures and the light needed.

Which light bulb base type do I need?

To determine the right light bulb, identify the base type by checking the existing bulb or the fixture. We carry base types such as <a href="https://www.homedepot.com/b/Lighting-Light-Bulbs/Daylight-5000K/Candelabra/Dusk-to-Dawn/N-5yc1vZbmbuZ1z0jv3dZ1z0toahZ1z22yi7?emt=plpfaq_2504_lightbulbs" style="text-decoration: underline;">candelabra</a> and <a href="https://www.homedepot.com/b/Lighting-Light-Bulbs/Daylight-5000K/Medium/Dusk-to-Dawn/N-5yc1vZbmbuZ1z0jv3dZ1z0toqlZ1z22yi7?emt=plpfaq_2504_lightbulbs" style="text-decoration: underline;">medium</a>.