There isn’t a suitable forum for LED strips so here it goes.
I got a sample of the Medialight Pro 6500K CRI99 LED light strip for bias lighting monitors and televisions. This is a feature that decreases eye strain in a completely dark room so that the (relatively) small viewable display area is not the only bright thing in your field of view. To my knowledge Philips is the only TV manufacturer with a built-in bias lighting system (Ambilight). Aftermarket kits are available and they can even be programmed to dynamically react to the content on screen when you wire the HDMI signal through the bias light controller.
The Medialight Pro is a single color bias light with PWM dimming. I don’t know the manufacturer of the violet (~400nm) pumped LEDs. Despite the similar package size they are not Yuji VTC series, that’s for sure.
Long story short and measurements right after the observations:
- Excellent CRI (Ra 98, R9 98, TM-30-15 Rf 97, Rg 99)
- Tad greener than D65 (which the light is supposed to mimic)
- PWM controller is too slow in frequency (155Hz) to be used on any other mode than max (click for video Imgur: The magic of the Internet)
- Power consumption on max is 2.6 watts (0.49A at 5.3V)
- Power consumption on min is 82mW (15.4mA at 5.3V)
- Power consumption on standby is 30mW (5.6mA at 5.3V)
Contrary to what it might look like here, all the LEDs are identical in color temp.
Image adjusted to be closer to what it actually looks like. My monitor is actually calibrated to 6150K, not D65.
The violet pumped LEDs produce a stunning spectrum with super high CRI as promised.
Bouncing it off of my Grandview projection screen gives the light a bit of greenish tint, which would be visible compared to a D65 calibrated monitor.
XY coordinates on CIE1936 chart compared to the D65 illuminant. The greenish tint would benefit from a slight magenta tint to the wall the light is bounced from.