Brunswick on Nostr: You dont get uvc from incandescent. To get uvc from a fluorescent (mercury plasma) ...

You dont get uvc from incandescent. To get uvc from a fluorescent (mercury plasma) bulb, you need it to be void of phoaphor and made with a quartz tube. Otherwise, UVC is only present when you are in proximity to welding. Uva and uvb are what you get sunburn from, and what gives you that unpleasent tingling when you're in direct sunlight at high-noon. Its best to avoid direct sunlight mid-day and stay in shade amidst greenery, because Rayleigh blue-scattering is minimized at that time of day.