an LED bright enough to lit up your room clearly has maybe around 30 watts
30 watts for 1600 lumens (about the brightness of two 60 watt incandescent bulbs) would be about 53 lumens per watt. Which would be pretty abysmal for an LED light.
The bulbs I run output 200 lumens per watt, or 4 watts per bulb to output 800 lumens. In my kitchen I run two of them (so, 8 watts total), and that’s plenty bright.
Those are particularly high quality LED bulbs though, and its more common for them to be less efficient than that. In my opinion its very unfortunate that crap bulbs with efficiencies of less than 100 lumens per watt (and correspondingly low lifespans) are so common. But even those would have higher lm/w ratings, probably around 70-80.
30 watts for 1600 lumens (about the brightness of two 60 watt incandescent bulbs) would be about 53 lumens per watt. Which would be pretty abysmal for an LED light.
The bulbs I run output 200 lumens per watt, or 4 watts per bulb to output 800 lumens. In my kitchen I run two of them (so, 8 watts total), and that’s plenty bright.
Those are particularly high quality LED bulbs though, and its more common for them to be less efficient than that. In my opinion its very unfortunate that crap bulbs with efficiencies of less than 100 lumens per watt (and correspondingly low lifespans) are so common. But even those would have higher lm/w ratings, probably around 70-80.