This is the 120VAC bulb. Sorry the pics look so bad. Still getting use to my new camera. Personally, I think they both were almost the same, with the exception of a whiter light from the 12V bulb and a slight yellowish color from this 120V bulb, this may be due to the age of the n:vision bulb. They 12v did reach brightness quicker but this may again be due to age of the n:vision bulb.