Yeah mushrooms, if you look at the link 3 posts up it says all the bulbs we can use with the M-58 ballasts you and I have and Hamilton is one of them. Looks like I will have to save up and get a couple. The Hamilton I have on there now is black so I guess they lied when they said it was a new bulb on ebay, thats why it is dark. The other sun aquatics not sure if is compatible with the M-58 so that is why it could be dark. Thanks guys.
Eric