Appears to work well! – LightSpectrum Pro Review

Have had about thirty minutes and have analyzed the TVs and lights in my home. The results agree with the claims of the various bulb manufacturers and critics. Yes, the LED TV does emit blue light, the blue light blocking glasses block the blue light effectively, the amber night lights don't emit blue light, etc. Very easy to use! If you have an interest in this subject, you may want to try this app.
Review by Vicar!!! on LightSpectrum Pro.