Timeline for Do 2 bulbs with 500 lumens provide the same illumination as one with 1000 lumens?
Current License: CC BY-SA 3.0
14 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jan 8 at 17:56 | answer | added | Jamar. Hendy | timeline score: -2 | |
| Feb 17, 2023 at 17:17 | answer | added | BrianDSy | timeline score: 0 | |
| May 1, 2019 at 5:09 | vote | accept | András | ||
| May 1, 2019 at 5:05 | vote | accept | András | ||
| May 1, 2019 at 5:09 | |||||
| Dec 5, 2017 at 3:26 | answer | added | albator | timeline score: 3 | |
| Aug 24, 2017 at 7:25 | answer | added | Harper - Reinstate Monica | timeline score: 2 | |
| Aug 24, 2017 at 4:36 | comment | added | Harper - Reinstate Monica | The whole point of the lumen unit is that it is based on human perception, and represents the amount of light being cast into the fixture or room. How the fixture or room uses it is a different matter. The classic being the wallpack that spends most of its lumens lighting the wall instead of the parking lot. | |
| Aug 23, 2017 at 18:53 | answer | added | ArchonOSX | timeline score: 5 | |
| Aug 23, 2017 at 16:58 | answer | added | RedGrittyBrick | timeline score: 8 | |
| Aug 23, 2017 at 16:20 | answer | added | Retired Master Electrician | timeline score: 1 | |
| Aug 23, 2017 at 15:53 | comment | added | Ed Beal | It depends on the fixture and lamp type some fixtures reflect the light like metal halide but led in most cases have the light directed in the needed direction. | |
| Aug 23, 2017 at 15:50 | comment | added | András | @Sidney, I considered asking this in physics, but this has more to do with human perception. If you open the other half of your blinds too, the room would not seem doubly bright. | |
| Aug 23, 2017 at 15:48 | comment | added | Sidney | I'm not gonna say this is out of bounds on DIY, but you might consider asking on physics or photography if you don't get satisfactory answers here. | |
| Aug 23, 2017 at 15:20 | history | asked | András | CC BY-SA 3.0 |