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I thought LED lights were efficient?

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SeanB:
Still have a lot of 2ft and 4ft tubes, and installed one this week, because you do not get as much flicker from them compared to the LED, and the CRI on the Phillips Reflex tubes is really good.  Still have a box of incandescent lamps though, with a good number being pre 1939 made.

SteveyG:

--- Quote from: wraper on April 03, 2022, 07:36:08 pm ---Don't look on those efficiency ratings, calculate lumens per Watt (divide lumen rating by power consumption in W). Really good stuff has > 130lm/W. Half decent should have at least 100lm/W. Also as was already said, that efficiency scale got updated.

--- End quote ---

Lumens per Watt is a highly abused figure and rarely measured by a lamp manufacturer after integration. You are unlikely to get 100 lm/W in any retrofit style lamp after taking into account the temperature they run these things at and the power put through the LEDs.

wraper:

--- Quote from: SteveyG on April 05, 2022, 11:04:22 am ---
--- Quote from: wraper on April 03, 2022, 07:36:08 pm ---Don't look on those efficiency ratings, calculate lumens per Watt (divide lumen rating by power consumption in W). Really good stuff has > 130lm/W. Half decent should have at least 100lm/W. Also as was already said, that efficiency scale got updated.

--- End quote ---

Lumens per Watt is a highly abused figure and rarely measured by a lamp manufacturer after integration. You are unlikely to get 100 lm/W in any retrofit style lamp after taking into account the temperature they run these things at and the power put through the LEDs.

--- End quote ---
Even if your claim was true, do you think it's better to use a bulb that has 100lm/l or 140lm/w in ideal conditions? Those numbers don't come from nowhere. Higher efficiency bulbs have way more LEDs inside them and a switch mode ballast, not just a linear or capacitive dropper.

f4eru:

--- Quote from: Ice-Tea on April 04, 2022, 11:18:43 am ---The really good fluorescents are at least on par with poor LED replacements.

--- End quote ---
So they are still worse in general.



--- Quote from: Ice-Tea on April 04, 2022, 11:18:43 am ---What pisses me off a bit is the whole "oh, all those fluorescents have got to go" as if it's written in the Bible.  :--
--- End quote ---
One huge factor to phase them out is the mercury content, and also it's bad habit to be inhaled when the tube is broken...

madires:

--- Quote from: Ice-Tea on April 04, 2022, 11:18:43 am ---What pisses me off a bit is the whole "oh, all those fluorescents have got to go" as if it's written in the Bible.  :--

The really good fluorescents are at least on par with poor LED replacements.

--- End quote ---

Is anyone forcing you to change them? If you're happy with your fluorescents keep them running.

I'm in the process of changing old style fluorescents with ballast and starter to LED. Most are converted to LED and some are replaced with new lamps for damp environments (the cover also provides some protection from mishaps). No specific brands, a mixed bag. So far the LED tubes are brighter, need less power and the instant-on is great too. I know, good electronic ballasts provide similar power-on times, but they aren't for free.

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