how much uv do leds emit
Their warm white LEDs show even worse results, a peak output of 1.9W/cm2 and a short wave UV output of 2.9W/cm2. The bottom line is that these fixtures put out as much UV as they do blue light.All LEDs also emit IR. As a matter of fact, heat dissipation is a major factor in LED design and LED life.egardless, there is big difference between no long wave UV and no UV at all. (That's why the government sets UVB filtering standards for sunglasses.) The photo above shows a UVX Radiometer using a 200nm-300nm head (UVB and UVC) in the actual testing of a major brand white LED luminaire.