Can a surefire x80 lamp from the surefire 8 series lights be "converted" to a CREE LED and still use the Surefire rechargable B90 batteries? What would the burn time be (the X80 lamp goes approx 50 mins)

I am a Police Officer and I have been carrying a Surefire 8X rechargable light for about ten years now.....I love the light, but it seems my little Fenix P2D puts out more light......I would like to keep using my 8X - I just want to make it a LOT brighter and whiter!!!

Does anyone know of a CREE bulb that will drop in the Surefire 8 series flashlights? Maybe someone who can mod the lamp to a good LED? The X80 lamp is a different size than the P60 lamp....