I was able to convert my heritage century into a LED color changing lamp for fairly cheap! roughly $25!!
This was the first part I purchased, its a 50w ceramic heater. It gets hot so a dimmer is a must use. You can see the size comparison with the standard bulb. It wont fit in the standard 32oz or 52oz "premier" bases, I tried. The century has a larger bulb opening allowing you to screw it fully in. Ebay Link
Next purchase was the LED rings. They are 70mm halo rings made for car custom headlights. Cost about $19 for a set of 4 rings that come with a remote 24 buttons and IR remote box and some adhesive pads. I did purchase new IR remote boxes with 44 button remotes that have more color phasing options and dyi options cost under $5.00. Ebay Link
Here's how it looks with the globe off. The ring fits on the base inner rim perfectly. You can see the ceramic heater is showing its red hotness! The one thing I was worried about is the LED ring wiring being so close to the heater so I took some tin foil and rolled it around heater so it keeps the heat down for the wiring and flowing upward toward the globe. Speaking of wiring, the only modification I made to the base was that I pulled off the cord plug and then feed the led wiring thru the hole. Then pulled out all the slack of the led wires and tied it off to keep the wiring away from the heater.
Here are a couple pics of the 3 main colors look and a couple videos of the color changing.
You had no more lamps explode on you doing this?
NO! as long as a heat shield is not used, they worked fine
It was too much heat intensity on a concentrated surface
Id love to do this with one of my Grande's Just need to find a heating bulb in the uk