https://www.wsj.com/articles/i-take-a-dim-view-of-todays-lightbulbs-11597006857?mod=opinion_lead_pos9
I like to think of myself as a smart shopper who knows what to look for when buying a car or a computer—or even a townhouse. But recently I was flummoxed looking at a display of lightbulbs: Which packet of four bulbs should I buy? Since this was a chain pharmacy, there was no one to ask for help. I decided to buy the cheapest pack, but I kept the sales slip. I thought I might want to return the packet after learning more about lightbulbs.
When I got home I found an article on the internet that explained what to look for in a lightbulb. Every writer admits that buying a lightbulb is not easy. There are so many types of bulbs: standard incandescent bulbs, fluorescent tubes, compact fluorescent swirls, halogen pucks and LEDs. Though I had no idea what a “halogen puck” is, I read on, in search of illumination.
I learned about lumens, which measure how bright the light is. Maybe all I need to know about lightbulbs is how many lumens is the equivalent of a 100-watt bulb, which is the lightbulb I used to buy. But I soon realized that I need to choose the kind of lightbulb I want before I check out the lumens. I ruled out fluorescent bulbs because I hate fluorescent light. LED bulbs are popular but they are expensive. They last much longer than other lightbulbs—11 years, according to one account, as opposed to roughly one year for an incandescent bulb. But I’m 79, so why should I spend twice as much money for lightbulbs that probably will outlast me?