That conversation took place more than 20 years ago and led to the creation of a nonprofit organization called the Planned Lifetime Advocacy Network, or PLAN. Etmanski is the organization's president.
LED bulb delivers highly intense beam with an approximate lifetimeof 100,000 hours.
LED灯泡提供了一个近似的100,000小时寿命高强度的光束。
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The promise of longer lifetime, better light quality, and energy savings are touted as the major factors behind the sea change from incandescent and compact fluorescent luminaries to LED.