Quote Originally Posted by Duke of Gloucester
The difference between light waves, radio waves and gamma rays is their wavelength, not their amplitude. This is what gives them different properties. At big enough amplitudes light and radio waves would be harmful because some of the energy would be absorbed and cause burning. Ultra violet, gamma and x-rays are different because the individual photons have enough energy to dammage molecules (including DNA).
Yeah you're right, I formulated myself poorly.

Although it's very hard to miss if you're exposed to extreme levels of visible light or any electromagnetic waves with any lower wavelength. The heat would be unbearable.