zlacker

>>sberen+(OP)
This is super interesting, and I'd actually be quite interested in buying a 60K-Lumen lamp... but not at $1200.

Years ago, there was an HN article "You Need More Lumens"[1], which in turn led me down a rabbit hole.

I ended up purchasing:

   4 standard table lamps from Target,
  28 2000-lumen Cree LEDs bulbs[2] and,
   4 7-way splitters[3].

The end result is somewhere around 56,000 lumens. And I LOVE it. Makes me much happier in my home office, especially in the winter months.

[1] >>10957614

[2] https://www.amazon.com/dp/B08H4RJQTT

[3] https://www.amazon.com/dp/B01FKIE6M4

>>mmh000+8O7
$1200 is a lot, and it would be a straight dealbreaker to me as well. But I also noticed it draws 580W, which is a lot too.

Besides not wanting to waste the money, I doubt the lamp will last 5 years (not 5 years of projected use of XX minutes per day…). 580W converted to heat on a small disk will take its toll.

>>404mm+uj8
~100 lumens per watt is rather poor, especially given the cost. It's the same as a standard LED lightbulb, and that includes the miniature AC voltage converter.

150lm/w would make it at least a cut above domestic lightbulbs.

200lm/w would make it a premium product.

>>SPICLK+eX8
> ~100 lumens per watt is rather poor

Is it, though? Most of the LEDs I've seen are very similar, and lower temp LEDs are slightly less efficient. If it were 60lm/watt I'd be a bit surprised, but 100lm seems pretty typical. Maybe not "well engineered", but average. (Which, with all due respect to the founder, seems the quality of the product.)

>>user_7+5Z8
CREE offer a variety of LED types with efficiencies 150lm/w (eg CMB, XT-E), up to 230lm/w (eg, 5050).

While 100lm/w is typical for domestic LED lighting, it's going to cause problems when the total power is several orders of magnitude higher but the form factor is approximately the same size. That heatsink will probably fry an egg, and I wonder about the lifetime of the diffuser plastic.