Hacker News new | ask | show | jobs
by eli 4272 days ago
The "white" LEDs you see in light bulbs in the store are actually blue.
1 comments

How? Or is it a mix of Red, Blue and Green?
There are down-converting phosphors on the surface that convert a fraction of the blue light to other wavelengths to get close to white.
Is that the same method as fluorescent lighting?
Similar in principle.