I have never been an LED guy, but I have experimented with a way of putting a lot of LEDs in an EM without it being noticeable. I put warm white, frosted, single LED bulbs in the backbox and natural light, frosted, single LEDs under the inserts. I leave the GIs as normal 44 bulbs to prevent the ball strobing and also LEDs in the GI don't look right. You can't tell the difference on the ones in the backbox and under the inserts. This makes a big difference in the power draw and heat produced. I figure it removes around a half an amp if not a little more on games with a lot of lights in the backbox. I use Comet Pinball LEDs by the way. They are $26 for 100.