Just saw this at Costco a few days ago. Never seen one of those before. Had to buy it.
Claims 8000 lumens. $20 each [edit: now $15 each on sale]. That compares favorably with those big panels you hang from the ceiling. But this fits right into a socket on the ceiling so no work needed.
I had 1600 lumens LED bulbs before. This is much brighter.
Also, the panels can be oriented at any angle between horizontal and almost vertical (I think, didn't try).
Did a measurement of brightness to compare to the 1600 lumens bulb:
old 1600: I measured 650 luxes at eyes height directly underneath and 375 luxes at about 45deg on the side.
new Costco: with all 3 panels horizontal I measured 7000 luxes directly underneath and 3000 on the sides
new Costco: with all 3 panels at about 45deg I measured 4000 directly underneath and 2000 on the sides.
So indeed much brighter. It's hard to look at it from close by actually.
One big benefit I think is that you can orient the panels to your needs. [Edited: never mind the earlier bit about not screwing it in all the way, that was wrong. I measured the light distribution circumferentially around the light and it's remarkably constant when the panels are at 45deg. Doesn't matter whether you look "between panels" on the side or in front of one, you get the same illumination. Very well done actually.] Also probably harsher shadows than with a big "tube" panel.
So far I'm impressed. Feels quite sturdy, and fairly heavy but I think fine for your normal ceiling socket. Life expectancy to be seen, of course, but eh, it's a (chinese) LED, so barring poor quality control it should last years.
This is it:
Claims 8000 lumens. $20 each [edit: now $15 each on sale]. That compares favorably with those big panels you hang from the ceiling. But this fits right into a socket on the ceiling so no work needed.
I had 1600 lumens LED bulbs before. This is much brighter.
Also, the panels can be oriented at any angle between horizontal and almost vertical (I think, didn't try).
Did a measurement of brightness to compare to the 1600 lumens bulb:
old 1600: I measured 650 luxes at eyes height directly underneath and 375 luxes at about 45deg on the side.
new Costco: with all 3 panels horizontal I measured 7000 luxes directly underneath and 3000 on the sides
new Costco: with all 3 panels at about 45deg I measured 4000 directly underneath and 2000 on the sides.
So indeed much brighter. It's hard to look at it from close by actually.
One big benefit I think is that you can orient the panels to your needs. [Edited: never mind the earlier bit about not screwing it in all the way, that was wrong. I measured the light distribution circumferentially around the light and it's remarkably constant when the panels are at 45deg. Doesn't matter whether you look "between panels" on the side or in front of one, you get the same illumination. Very well done actually.] Also probably harsher shadows than with a big "tube" panel.
So far I'm impressed. Feels quite sturdy, and fairly heavy but I think fine for your normal ceiling socket. Life expectancy to be seen, of course, but eh, it's a (chinese) LED, so barring poor quality control it should last years.
This is it:
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