“能源之星”是由美国能源部发起的一个政府项目.S. 环境保护署和美国.S. 能源部. 能源之星 helps consumers identify energy efficient products. 在购买灯泡时要注意能源之星标识, 电器, 家用电子产品及加热和冷却设备.

能源之星认证的灯泡节省金钱、能源和时间. They use nearly 75% less energy than incandescent bulbs and last up to 10 times longer while providing the same amount of light.

LEDs are small light sources that become illuminated by the movement of electrons through a semiconductor material. 现在商店货架上有很多LED产品. For the highest quality, buy bulbs with the 能源之星 logo.

CFLs come in many shapes and sizes to fit in common household light fixtures. 紧凑型荧光灯不同于荧光灯管. For the highest quality, buy bulbs with the 能源之星 logo.

Halogen bulbs are a type of incandescent lamp that uses a combination of halogen and tungsten filaments. They are up to 25% more efficient than traditional incandescent bulbs.

能源之星 bulbs can replace standard incandescent bulbs in almost any fixture. Specialty bulbs include globe lamps for your bathroom vanity and chandelier bulbs or lamps for recessed downlights. Check the packaging of the bulb to ensure it’s meant for your intended purpose.

有些灯泡适合户外使用. Bulb packaging provides information on temperature ratings and outdoor uses.

所有能源之星认证的灯泡都有保修期. 有关详细信息，请参阅灯泡包装. Warranties range from two to three years for residential use. Keep your receipt in case your bulb does not last as long as advertised.

While you will save energy by using an 能源之星 light bulb over an incandescent, read the packaging carefully to determine how the advertised savings were calculated. Rates, time frames and number of bulbs used to calculate the savings can vary. Most manufacturers use an electric rate based on a national average. Keep in mind that hg8868皇冠下载’s residential rate is generally lower than the national average. Calculations on a multi-pack may group the savings into one larger number that adds the savings from all the bulbs. Additionally, savings may be reported as yearly savings or over the life of the bulb.

瓦特衡量的是一个灯泡所消耗的能量. Although we associate higher wattage bulbs with greater light output, 瓦在技术上并不是亮度的量度. 然而, 用于替换白炽灯泡, watt equivalents can help narrow the search for the right bulb. The packaging for most 能源之星 bulbs provides the wattage of the bulb and the incandescent equivalent.

流明是光输出的量度单位. 流明越高，灯泡越亮. 两个15瓦的灯泡可以有不同的亮度. A 13-watt bulb with a brightness of 800 lumens puts out more light for the same energy as a 13-watt bulb with a brightness of 750 lumens.

There are many shades of white light measured in degrees of Kelvin (K). Warm colors work well in area lighting or mood lighting and have lower Kelvin temperatures. 使用较冷的灯和较高的开尔文温度, 如“日光”或“明亮的白色”为蓝色. 冷色适合阅读等任务.

是的. 只有特定的灯泡可以调光. The packaging information identifies whether the bulb is for use in a dimmable fixture. Dimming a bulb not designed to work with a dimmer switch may shorten its life or impact its performance.

CFLs contain a small amount of mercury sealed within the glass tubing, an average of 5 milligrams. By comparison, the average home thermometer contains 500 milligrams of mercury.

Fluorescent light bulbs, including CFLs, contain a small amount of mercury. hg8868皇冠下载 encourages safe handling and proper disposal of fluorescent bulbs. Please contact your local landfill or solid waste collection company for information on household hazardous waste collection programs or special handling requirements. 欲知详情，请浏览 http://epa.政府 /节能灯/.

While it is hard to know exactly why a bulb may fail, some items to consider include:

• 是能源之星灯泡吗? Bulbs must meet stricter quality control guidelines to receive the 能源之星 designation. If the bulb was an 能源之星 bulb, report the failure through www.能源之星的级别.政府.
• 这是适合应用的灯泡吗? 带有调光开关的灯泡, 三路开关, 运动传感器或户外必须为该用途额定.
• 灯泡是放在封闭的灯具里吗? Before using a bulb in an enclosed fixture, consult the product packaging. Bulbs not designed for totally enclosed fixtures will typically carry a disclaimer indicating they are not intended for this type of use. Because enclosed fixtures do not allow air to circulate around the lamp, 热量积聚, 哪些会导致性能问题.

更多信息见 www.能源之星的级别.政府.