Does anyone have any experience with these types of LED RGB bulbs? If so, can you tell me how they look for lighting props. Are the colors vibrant or kind of washed out? Also, how is the brightness? Most I find seem to be 3 Watts. Are 3 Watt RGB LEDs bright enough? How does a 3 Watt LED compare to the wattage of a standard light bulb? Anything else you can tell me would be helpful.