I guess you meant a 500W incandescent right?
A 2W LED gives about as much light as a 30W, and a 10W LED as much as a 100W incandescent.
500W on LED light would equal about 4kW on incandescent light, you'd be fried to death; lol!
Anyways, I thought someone mentioned the stronger the light, the more washed out the image looks?