Originally Posted by
Ayn R Key
I have a 10 Watt light on my keychain. I use it to find my keyhole on my door in the dark.
My doctor has a 10 Watt light in his office that he uses to burn warts. It has a caution to never look directly at the light.
Yup. My wife has retinal burns from a light that was less than 1 watt. (Done by a retinologist, not an accident.)