What does "lumens" mean, and how does it relate to brightness?

"Lumens" measure how much light a bulb emits – the higher the lumens, the brighter the bulb! To determine the right bulb for your needs, our <a href="https://www.homedepot.com/c/ab/light-bulb-brightness/9ba683603be9fa5395fab9014959566a?emt=plpfaq_2504_lightbulbs" style="text-decoration: underline;">Light Bulb Brightness guide</a> will explain how to choose the appropriate number of lumens to light up a room.

What are the main ways smart light bulbs connect, and which should I look for?

Smart light bulbs primarily connect via Wi-Fi, Bluetooth, or Zigbee/Z-Wave protocols. For ease of setup, look for Wi-Fi bulbs that connect directly to your home network or Bluetooth bulbs if you're starting small; Zigbee/Z-Wave bulbs require a compatible hub but offer more reliability and advanced features with systems like <a href="https://www.homedepot.com/b/Lighting-Light-Bulbs/Samsung-SmartThings/N-5yc1vZbmbuZ1z19uqf?emt=plpfaq_2504_lightbulbs" style="text-decoration: underline;">Samsung SmartThings</a> or <a href="https://www.homedepot.com/b/Lighting-Light-Bulbs/Homey/N-5yc1vZbmbuZ1z202rc?emt=plpfaq_2504_lightbulbs" style="text-decoration: underline;">Homey</a>.

What are twist & lock and bayonet bases, and how are they different from screw-in bases?

<a href="https://www.homedepot.com/b/Lighting-Light-Bulbs/Twist-Lock/N-5yc1vZbmbuZ1z21lyh?emt=plpfaq_2504_lightbulbs" style="text-decoration: underline;">Twist & lock bases</a>, often seen in recessed lighting and some outdoor fixtures, don't screw in but instead lock into place by inserting and turning. <a href="https://www.homedepot.com/b/Lighting-Light-Bulbs/Bayonet/N-5yc1vZbmbuZ1z21mm5?emt=plpfaq_2504_lightbulbs" style="text-decoration: underline;">bayonet bases</a>, recognized by their cylindrical shape and side pins, are commonly used in older fixtures and some specialty appliances. They don't use the traditional threaded screw-in design, so check the fixture before purchase.

Are type A EcoSmart bulbs available, and what are their benefits?

Yes, type A <a href="https://www.homedepot.com/b/Lighting-Light-Bulbs/EcoSmart/N-5yc1vZbmbuZ4b8?emt=plpfaq_2504_lightbulbs" style="text-decoration: underline;">EcoSmart light bulbs</a> offer the perfect combination of the traditional bulb shape with energy-saving LED technology. You get the familiar look and feel of a standard Type A bulb but with the benefits of reduced energy usage, extended lifespan, and lower long-term costs.