{"id":4482,"date":"2023-05-17T13:10:08","date_gmt":"2023-05-17T20:10:08","guid":{"rendered":"https:\/\/environmentamerica.org\/california\/?post_type=resource&#038;p=4482"},"modified":"2025-09-16T11:21:50","modified_gmt":"2025-09-16T18:21:50","slug":"buying-led-bulbs-what-to-look-for","status":"publish","type":"resource","link":"https:\/\/environmentamerica.org\/california\/resources\/buying-led-bulbs-what-to-look-for\/","title":{"rendered":"Buying LED bulbs: What to look for"},"featured_media":47663,"template":"","meta":{"_acf_changed":false,"_yoast_wpseo_meta-robots-noindex":false,"_yoast_wpseo_meta-robots-nofollow":false,"_yoast_wpseo_opengraph-title":"","_yoast_wpseo_opengraph-description":"","_yoast_wpseo_twitter-title":"","_yoast_wpseo_twitter-description":""},"campaign_tax":[155],"display_option":[],"issue_tax":[],"resource_type":[83],"region_tax":[],"state":[2],"topic_tax":[121,123],"class_list":["post-4482","resource","type-resource","status-publish","hentry"],"acf":{"details":{"helper_taxonomies":{"topics":[121,123],"collection":false,"press_type":false,"person_type":false,"resource_type":83,"event_type":false,"campaigns":155,"department":false,"level":false,"states":[2],"act_option":false,"display_option":false,"primary":{"topic":123}},"subtitle":"","excerpt":"To get the right efficient lighting for your home, you\u2019ll need to know how to pick the right brightness, color and bulb type from among the many LED options available.","featured_image":47663,"caption_override":"","updated_on":"20250916","sidebar_action":[],"related_event":"","hide_hero_image":false,"location":"internal","external_link":{"publication_name":"","url":""},"file":null,"sidebar_action_query_string":""},"helper_people_group":{"title":"Authors","entities":[{"type":"dynamic","dynamic_person":{"site":3,"people":"103"},"information":{"name":"","image":null,"role":"","biography":"","contact":{"twitter":"","facebook":"","email":"","phone":""}}},{"type":"dynamic","dynamic_person":{"site":2,"people":"1024"},"information":{"name":"","image":null,"role":"","biography":"","contact":{"twitter":"","facebook":"","email":"","phone":""}}}]},"helper_downloads":{"title":"Downloads","files":null},"page_layout":[{"acf_fc_layout":"layout_wysiwyg","_acfe_flexible_toggle":"","component_wysiwyg":{"content":"Light bulbs containing light-emitting diodes are increasingly common on store shelves, replacing fluorescent and incandescent bulbs. Thankfully, LEDs are\u00a0<a href=\"https:\/\/www.cnet.com\/home\/kitchen-and-household\/buying-led-bulbs-good-but-heres-5-things-to-consider-first\/\">much more efficient<\/a>\u00a0than other options, allowing you to use less energy and reduce your utility bills. More efficient lighting also means less need for fossil fuel power plants, reducing the damage that electricity generation causes to our\u00a0<a href=\"https:\/\/frontiergroup.org\/resources\/trouble-air-1\/\">health<\/a>\u00a0and environment.\r\n\r\nLEDs are quite different from incandescent and fluorescent light bulbs, and provide consumers with a wide array of choices that can be tailored to their specific lighting needs. There are even \u201csmart\u201d LEDs you can even control from your phone, adjusting color, brightness, schedules or even syncing them to music. Here are some tips to help you pick the right bulb:\r\n<h3><span style=\"font-weight: 400;\">What are lumens? The brightness of the LED<\/span><\/h3>\r\n<span style=\"font-weight: 400;\">The first metric to know about when buying LED bulbs is <\/span><b>lumens<\/b><span style=\"font-weight: 400;\">. <\/span><a href=\"https:\/\/www.energy.gov\/energysaver\/lumens-and-lighting-facts-label\"><span style=\"font-weight: 400;\">Lumens<\/span><\/a><span style=\"font-weight: 400;\"> are a measurement of brightness (more lumens = higher brightness), and the first thing you should look for to decide if a given LED will meet your needs.\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">Less-efficient bulbs, like incandescents and fluorescents, get brighter as they use more power (which is why we often describe the brightness of incandescent bulbs in watts, a unit of power).\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">LEDs, on the other hand, don\u2019t necessarily require more power to be brighter, so they are measured with lumens. Manufacturers are required to label LEDs with their brightness in lumens, so this should be easy to find on the box. Before buying an LED, take note of the wattage or lumens of the bulbs you\u2019re replacing, and think about whether you want the space to be lit more or less brightly.\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">The Department of Energy has compiled a rough guide of LED brightness and how it compares to incandescents based on watts:\u00a0<\/span>\r\n<ul>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">What LED bulb is equivalent to a 100-watt incandescent?<\/span>\r\n<ul>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">An <\/span><b>LED rated at 1,600 lumens<\/b><span style=\"font-weight: 400;\"> should produce light as bright as a <\/span><b>100-watt incandescent lightbulb<\/b><span style=\"font-weight: 400;\"> (think brightly lit spaces like offices or kitchens).<\/span><\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">What LED bulb is equivalent to a 75-watt incandescent?\u00a0<\/span>\r\n<ul>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">An <\/span><b>LED rated at 1,100 lumens<\/b><span style=\"font-weight: 400;\"> should produce light as bright as a <\/span><b>75-watt incandescent<\/b><span style=\"font-weight: 400;\">.<\/span><\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">What LED bulb is equivalent to a 60-watt incandescent?<\/span>\r\n<ul>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">An <\/span><b>LED rated at 800 lumens<\/b><span style=\"font-weight: 400;\"> should produce light as bright as a <\/span><b>60-watt incandescent<\/b><span style=\"font-weight: 400;\"> (think lamps and other, softer home lighting).<\/span><\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">What LED bulb is equivalent to a 40-watt incandescent?<\/span>\r\n<ul>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">An <\/span><b>LED rated at 450 lumens<\/b><span style=\"font-weight: 400;\"> should produce light as bright as a <\/span><b>40-watt incandescent<\/b><span style=\"font-weight: 400;\">.<\/span><\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>","":null}},{"acf_fc_layout":"layout_large_image","_acfe_flexible_toggle":"","component_large_image":{"width":"wide","image":47672,"caption_override":""}},{"acf_fc_layout":"layout_wysiwyg","_acfe_flexible_toggle":"","component_wysiwyg":{"content":"<h3><span style=\"font-weight: 400;\">What is Kelvin? The color of the LED<\/span><\/h3>\r\n<span style=\"font-weight: 400;\">The second, crucial aspect of LEDs is their color. While <\/span><a href=\"https:\/\/home.howstuffworks.com\/light-bulb1.htm\"><span style=\"font-weight: 400;\">incandescent bulbs<\/span><\/a><span style=\"font-weight: 400;\"> are yellow and warm (because, remember, they\u2019re literally glowing with heat) and <\/span><a href=\"https:\/\/home.howstuffworks.com\/fluorescent-lamp2.htm\"><span style=\"font-weight: 400;\">fluorescent bulbs<\/span><\/a><span style=\"font-weight: 400;\"> are generally made to be somewhat yellow, LEDs can come in a much wider range of colors. This gives you much more control over the light and color you want, but it can be confusing, since the other technologies don\u2019t have these options. <\/span><b>Kelvin <\/b><span style=\"font-weight: 400;\">(abbreviated K) is the way the color of LEDs is specified, with lower Kelvin values meaning light that is warmer (more yellow and orange) and higher Kelvin values indicating cooler, bluer light. <\/span><a href=\"https:\/\/www.cnet.com\/home\/kitchen-and-household\/should-you-buy-warm-or-cool-lights\/\"><span style=\"font-weight: 400;\">CNET<\/span><\/a><span style=\"font-weight: 400;\">, <\/span><a href=\"https:\/\/www.usa.lighting.philips.com\/consumer\/led-lights\/warm-led-light\"><span style=\"font-weight: 400;\">Philips<\/span><\/a><span style=\"font-weight: 400;\">, <\/span><a href=\"https:\/\/www.gelighting.com\/inform\/how-choose-led-light-bulbs-your-home\"><span style=\"font-weight: 400;\">GE<\/span><\/a><span style=\"font-weight: 400;\"> and others have guides to choosing the right color of light, but in general:<\/span>\r\n<ul>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">For a <\/span><b>warm, amber-y light<\/b><span style=\"font-weight: 400;\"> (like in a den or living room with the lights down low), look for <\/span><b>2,200K or 2,300K LEDs<\/b><span style=\"font-weight: 400;\">.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">For a <\/span><b>soft yellow-white light<\/b><span style=\"font-weight: 400;\"> (dining room, living room, bedroom), look for <\/span><b>2,700K-3,000K LEDs<\/b><span style=\"font-weight: 400;\">. This is the typical color of incandescent light, with 3,000K being on the cooler end of things.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">For <\/span><b>white light, with just a little yellow in it<\/b><span style=\"font-weight: 400;\"> (kitchen, bathroom), look for <\/span><b>3,000K-4,000K LEDs<\/b><span style=\"font-weight: 400;\">.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">For <\/span><b>bright white light<\/b><span style=\"font-weight: 400;\">, like for an office, look for <\/span><b>4,000K-5,000K LEDs<\/b><span style=\"font-weight: 400;\">.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\">For <b>\u201cdaylight\u201d<\/b> (which is much bluer than most indoor lighting, provides high color contrast and is not necessarily preferred for most home uses), look for <b>LEDs above 5,000K<\/b>.<\/li>\r\n<\/ul>","":null}},{"acf_fc_layout":"layout_large_image","_acfe_flexible_toggle":"","component_large_image":{"width":"wide","image":47669,"caption_override":""}},{"acf_fc_layout":"layout_wysiwyg","_acfe_flexible_toggle":"","component_wysiwyg":{"content":"<span style=\"font-weight: 400;\">In addition to listing brightness (in lumens) on LED packaging, manufacturers are <\/span><a href=\"https:\/\/www.energy.gov\/energysaver\/lumens-and-lighting-facts-label\"><span style=\"font-weight: 400;\">required<\/span><\/a><span style=\"font-weight: 400;\"> to show LEDs\u2019 color (in Kelvin) on the box. Make sure you know where you\u2019re going to put the bulb and what you want to use that space for, and\/or try some of the LEDs whose color you can control from a smartphone.<\/span>","":null}},{"acf_fc_layout":"layout_large_image","_acfe_flexible_toggle":"","component_large_image":{"width":"wide","image":47668,"caption_override":""}},{"acf_fc_layout":"layout_wysiwyg","_acfe_flexible_toggle":"","component_wysiwyg":{"content":"<h3><span style=\"font-weight: 400;\">What is color-rendering index? How things look in the light<\/span><\/h3>\r\n<a href=\"https:\/\/lightingdesignstudio.co.uk\/cri-lighting-design\/\"><span style=\"font-weight: 400;\">Color-rendering index (CRI)<\/span><\/a><span style=\"font-weight: 400;\"> is a measure of how the light from a bulb affects the appearance of colors of illuminated objects. CRI is measured on a scale from 1 to 100, with higher values indicating that objects will look more like they do under natural sunlight. Manufacturers are not required to publicize the CRI of an LED, though they often do, and it isn\u2019t always the most useful or reliable data point because it is based on a small number of color samples and the results are averaged. Though you can\u2019t rely on CRI too much, look for higher CRI values if possible (above 90 is better) and consider checking customer reviews for comments about color rendering.\u00a0<\/span>\r\n\r\nNote that LED bulbs may <a href=\"https:\/\/www.nvcuk.com\/technical-support\/view\/led-dimming---frequently-asked-questions-12\">dim<\/a> with age, with both their quality and intensity declining over time. This might mean you need to replace an LED bulb before it dies if you want to maintain a particular light quality.","":null}},{"acf_fc_layout":"layout_accordion","_acfe_flexible_toggle":"","component_accordion":{"title":"","entries":[{"title":" Why are LED bulbs better than incandescents and fluorescents? ","content":"<a href=\"https:\/\/electronics.howstuffworks.com\/led.htm\">LEDs \u2013 or light-emitting diodes<\/a>\u00a0\u2013 pass electrons in one direction between two different kinds of semiconductors (similar to what makes up transistors in electronics), producing light. They generate much less heat, produce light more efficiently, don\u2019t rely on a toxic element, and can last much longer than either incandescents or fluorescents. In contrast, <a href=\"https:\/\/home.howstuffworks.com\/light-bulb1.htm\">incandescent bulbs<\/a>\u00a0run electricity through a thin filament, and the electrical resistance of the filament causes it to heat up and glow, producing some light. That\u2019s why incandescent bulbs use so much more power (watts) than LEDs. <a href=\"https:\/\/home.howstuffworks.com\/fluorescent-lamp2.htm\">Fluorescent bulbs<\/a>\u00a0are more efficient than incandescent bulbs, but they contain gaseous mercury, a highly toxic element that presents health and environmental risks."},{"title":"Can I dim my LED bulb?","content":"<span style=\"font-weight: 400;\">There are <\/span><a href=\"https:\/\/www.cnet.com\/home\/kitchen-and-household\/how-to-buy-dimmable-led-bulbs-that-wont-hum-flicker-or-buzz\/\"><span style=\"font-weight: 400;\">lots of different kinds of dimmer switches<\/span><\/a><span style=\"font-weight: 400;\"> that you might have in your home, from those that vary voltage to those that flick power on and off rapidly and many others. While incandescent bulbs generally work with all different types of dimmers, LEDs are more complicated: for example, they have a minimum voltage needed to function at all, and are not always built to handle rapid on-off cycles. LEDs can be made to be dimmable, but aren\u2019t always compatible with every type of dimmer.\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">\u201cSmart\u201d LEDs (whose color and brightness can be controlled by a remote or a smartphone) are generally not compatible with any kind of dimmer. When an LED is used in an incompatible dimmer circuit, it can flicker, hum, buzz, not work below certain thresholds, or have a significantly reduced lifespan.\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">If you\u2019re getting LEDs for a house or room without dimmers, you can get whatever bulb you want, but if you want to be able to dim your LEDs, the following tips can help you <\/span><a href=\"https:\/\/www.cnet.com\/home\/kitchen-and-household\/how-to-buy-dimmable-led-bulbs-that-wont-hum-flicker-or-buzz\/\"><span style=\"font-weight: 400;\">avoid problems<\/span><\/a><span style=\"font-weight: 400;\">:<\/span>\r\n\r\n<b>Tips for buying dimmable LED bulbs\u00a0<\/b>\r\n<ul>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">If you know what kind of dimmer switches you have, look for LEDs labeled \u201cdimmable\u201d that are compatible with that type. Buy one LED from a well-known brand that should be compatible, and test it out. You may be able to return it if it doesn\u2019t work (and check whether you can do so when you buy it).<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">If you don\u2019t know what kind of dimmer you have, you can try a variety of LEDs compatible with different types (see above).<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">You can also replace the dimmer switches you have with models designed specifically for LEDs. Search around for recommendations from organizations\/reviewers you trust.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">As a last resort, you could try buying so-called \u201csmart\u201d LED bulbs that can be controlled with a remote or your phone. While they don\u2019t work with dimmer switches, they have built-in circuitry to allow dimming from the remote or on an app. Plus, they often can change colors. You may not end up using the color-changing or dimming features of a smart bulb all that often, and some people don\u2019t like having to use their phones or a remote to control their lights, but it is an option. <\/span><\/li>\r\n<\/ul>"},{"title":"Can I put an LED into any type of fixture?","content":"<span style=\"font-weight: 400;\">While LEDs produce much less heat than incandescent or fluorescent lights, they do produce some. Basic LEDs are <\/span><a href=\"https:\/\/www.cnet.com\/home\/kitchen-and-household\/buying-led-bulbs-good-but-heres-5-things-to-consider-first\/\"><span style=\"font-weight: 400;\">designed<\/span><\/a><span style=\"font-weight: 400;\">, however, to conduct that heat towards the base of the bulb and dissipate it from there (whereas, say, an incandescent bulb dissipates heat from the bulb itself). That means that if there is no way for the base of the LED to dissipate heat (e.g., if it\u2019s in an <\/span><a href=\"https:\/\/blog.1000bulbs.com\/home\/\/enclosed-or-not-enclosed-that-is-the-question\"><span style=\"font-weight: 400;\">enclosed fixture<\/span><\/a><span style=\"font-weight: 400;\"> like a fully enclosed porch lamp or a recessed dome light), it could overheat and burn out. Luckily, some LEDs are designed to be used safely in enclosed fixtures. To avoid overheating problems, for any enclosed fixtures \u2013 recessed dome lights, enclosed porch lights, or any other fixture where there won\u2019t be a lot of ventilation or heat dissipation \u2013 use LEDs that are designed for enclosed fixtures.<\/span>"},{"title":"Should I buy fixtures with built-in LEDs?","content":"<span style=\"font-weight: 400;\">Some LED fixtures are sold with bulbs that are neither removable nor replaceable. That can make them easy to install, but it means that the whole thing becomes non-functional or much less useful if even a single piece stops working. That means you might end up getting rid of pieces that are perfectly good and replacing more than is necessary, which is a waste of your money and of energy and resources. If possible, try buying LED bulbs to go into your current fixtures, or buying fixtures with replaceable bulbs.<\/span>"},{"title":"How much power will an LED use?","content":"<span style=\"font-weight: 400;\">Any LED bulb you find will likely use a lot less power than the incandescents and fluorescents you\u2019re used to. That being said, there is still variation in power consumption between LEDs. If you\u2019re deciding between two different LED bulbs that are equivalent in lumens, Kelvin and CRI (and, if you\u2019ve tried to dig further, customer reviews), you may want to go with the bulb that uses less power (measured in watts), as that means you\u2019ll use (and pay for) less electricity.<\/span>"}]}},{"acf_fc_layout":"layout_wysiwyg","_acfe_flexible_toggle":"","component_wysiwyg":{"content":"In short, LEDs deliver energy and cost savings for you, pollution savings for the planet, and much more control over how you light up your life.","":null}},{"acf_fc_layout":"layout_featured_action","_acfe_flexible_toggle":"","component_featured_action":{"action":"","action_query_string":""}}],"site_specific_content":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.8 (Yoast SEO v28.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Buying LED bulbs: What to look for<\/title>\n<meta name=\"description\" content=\"To get the 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