>LED light >100W equivalent >480 lm >12 Watts >lifespan

>>59084826
>tranquility is beauty, equanimity is joy

>>59084826
Borders on fraud.
60W equivalent = 800 lm

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

Lifespan 2 years is probably true.

>>59084826
How many lm does incandescent light bulb have?

>>59085042
60W incandescent is about 800 lm

>>59085089

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.

>>59085451
http://geizhals.eu/?cat=hhleuchtled&xf=1299_E14%7E1299_E27%7E4388_30%7E4627_4500

>>59085495
I meant in hardware stores. I can find offerings online well. In stores the ratio between 2700K vs 4000K and up is astounding.

>>59085042
25W 200lm
40W 400lm
60W 800lm
75W 1200lm
100W 1600lm
150W 2400lm

>>59085909
How come 100W is twice as bright as 60W?

>>59085977

Probably proportionally less waste goes to heat.

>>59085977

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.

>>59084826
>12W LED
>only 480lm
>"""100W equivalent"""

>>59084826
Chinked

>>59085451

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

>>59085977
>How come 100W is twice as bright as 60W?

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

>>59088081
No, Lumens don't scale linearly.

>>59084826
>>contains mercury

Wut?

>>59088155
>Lumens don't scale linearly

1 cd·1 sr = 1 lm

>>59084899
I bet all their budget went for the guy who came up with that.

>>59090049
*lumens per watt

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

>>59085451
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.

>>59084826
>Designed and Engineered in U.S.A

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

>>59085385
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.