If you had a 175 watt laser that fired a 320um thick beam and turned on and off every tenth of a second, would it harm someone if aimed at their head?
"I have a lamp and the sticker on it says ""CAUTION to reduce the risk of fire use MAX 60w type A lamp or maximum 15 watt self-ballasted lamp or lamp adapter."" Why would the sticker indicate that a 15-watt CFL is the maximum allowable if it also also says it's safe to use a 60 watt incandescent?"