Hi all, Back when LED's were being discussed on ALE, I did some research on lumens ratings. I have a chart which I'll replicate here. The standard lumens ratings come from Wikipedia. I've also (arbitrarily) created a range column which shows a + / - 10% variance of what I would expect to see. I'm using dashes for spacing to try to maintain column alignment.
Watts ----- Lumens ----- -10% Lumens ----- + 10% Lumens 5 ---------- 25 ------------ 23 ----------------- 28 15 --------- 110 ----------- 99 ----------------- 121 25 --------- 200 ----------- 180 ---------------- 220 40 --------- 500 ----------- 450 ---------------- 550 60 --------- 850 ----------- 765 ---------------- 935 75 --------- 1200 --------- 1080 --------------- 1320 100 -------- 1700 --------- 1530 --------------- 1870 150 -------- 2850 --------- 2565 --------------- 3135 You really have to watch out. There's a lot of ... er ... horsefeathers out there and what I consider to be fraudulent advertising. GE now has a "60 W replacement" with SUBSTANTIALLY less lumens than a regular 60 W bulb and very bad life expectancy. There are also some "long life" light bulbs I saw at Walmart that have maybe double the life of normal, but no where near the 10,000 hours of the heavy duty bulbs that Allen (I think) posted about before. PS. I recently got a 75 W equivalent 1100 lumen Cree from Home Depot. I wrote about it in another post. I like it, and it seems to be doing its job. I just noticed that the lumen rating is just barely within my spec range for a "75 W" bulb. But, it's enough. It wasn't cheap though, at $ 22. Sincerely, Ron Allen Beddingfield <[email protected]> wrote: >I've noticed a large number of really cheap low lumens 60 watt bulbs, >recently. Home Depot had some 60 watt bulbs from a brand I had never >heard of for really cheap...and they were 450 lumens rated. Dollar Tree >had packs of 3 60 watt 500-something lumens bulbs. For just over $2 per >4-pack, Dollar General still has plenty of the good GE 800+ lumens >rated 60 watt bulbs. Lowes seems to be the best place to get Sylvania >incandescents in big sturdy cardboard boxes designed for stacking - >great for long term storage. > >Allen B. >----- Original Message ----- >From: William Bagwell >Sent: 01/16/14 07:36 AM >To: tech-chat >Subject: Re: [tech-chat] Congress blocks light bulb efficiency >standards > >Tail end of the second article had this quote, "In late December, Home >Depot told FoxNews.com it had a six-month stockpile before the supplies >ran out." I was in both a Home Depot and a Lowe's yesterday. Noticed >Home Depot seemed to be emphasizing new LED bulbs with end cap displays >in several places out side of the bulb department. Lowe's had three or >four *pallets* of incandescent bulbs in the main isle just past the >entrance. Wondering if this was their stock pile, and they decided to >put it all out at once before the public catches on about the law being >blocked. -- William _______________________________________________ >tech-chat mailing list [email protected] >http://lists.linuxmoose.com/mailman/listinfo/tech-chat > > > >-- >Allen Beddingfield >[email protected] > > >------------------------------------------------------------------------ > >_______________________________________________ >tech-chat mailing list >[email protected] >http://lists.linuxmoose.com/mailman/listinfo/tech-chat -- Sent from my Android Acer A500 tablet with bluetooth keyboard and K-9 Mail. Please excuse my potential brevity if I'm typing on the touch screen. (PS - If you email me and don't get a quick response, you might want to call on the phone. I get about 300 emails per day from alternate energy mailing lists and such. I don't always see new email messages very quickly.) Ron Frazier 770-205-9422 (O) Leave a message. linuxdude AT techstarship.com _______________________________________________ tech-chat mailing list [email protected] http://lists.linuxmoose.com/mailman/listinfo/tech-chat
