LED light

>LED light
>100W equivalent
>480 lm
>12 Watts
>lifespan 2 year
>contains mercury

What the fuck is this shit?

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>tranquility is beauty, equanimity is joy

Borders on fraud.
60W equivalent = 800 lm

The best LED lamps well exceed 100 lm/W now.

Lifespan 2 years is probably true.

How many lm does incandescent light bulb have?

60W incandescent is about 800 lm

40-watt incandescent bulb = 450 lumens
60-watt incandescent bulb = 800 lumens
100-watt incandescent bulb = 1600 lumens
yeah this sucks, 60w equivalent I use apparently only have ~450lm

Are 4000+ Kelvin temperature LED bulbs as obnoxiously hard to find in USA as in my part of Europe? I went to a hardware stores and there's loads of useless 2700K-3000K rated bulbs with only a few 4000K.

geizhals.eu/?cat=hhleuchtled&xf=1299_E14~1299_E27~4388_30~4627_4500

I meant in hardware stores. I can find offerings online well. In stores the ratio between 2700K vs 4000K and up is astounding.

25W 200lm
40W 400lm
60W 800lm
75W 1200lm
100W 1600lm
150W 2400lm

How come 100W is twice as bright as 60W?

Probably proportionally less waste goes to heat.

They run hotter and produce more visible light. That's why 40/60/100W 3-way bulbs only have 400/800/1200lm as the heat is spread across 2 filaments.

>12W LED
>only 480lm
>"""100W equivalent"""

Chinked

Look for the "daylight" label. Nearly half the bulbs on display here are 5000K.

>How come 100W is twice as bright as 60W?

Because those are estimates. Each manufacturer's lamps will produce different output.

No, Lumens don't scale linearly.

>>contains mercury

Wut?

>Lumens don't scale linearly

1 cd·1 sr = 1 lm

I bet all their budget went for the guy who came up with that.

*lumens per watt

The temperature of the filament is not twice as hot so you don't have twice the heat loss.

At the local Menards, you can buy 2700k, 3500k 5000k and 6500k. At smaller retail stores like Walmart you're usually limited to just 2700k and 6500k.

>Designed and Engineered in U.S.A

>Matches Color and Brightness of Traditional Light Bulb
>6500K

Those are high estimates. Incandescent bulbs actually can vary quite a lot in efficiency, there are ones that go as low as 8 lm/W.