http://www.amazon.com/gp/product/B00...=pd_bia_yo_t_2
Just replaced all of mine (27) with these... work awesome, really good price, will allow for a 12 volt system that fluctuates (they all do)
Have had 3 friends replace with these as well..worth every penny as i can have all 27 lights on and there isn't an a bit of hum from the inverter anymore (means no draw)