Do you know which bulbs are in the 2 red lamps at the back of my 250? If they are GE-335s I will take them to install in front. I found a ge-335 source on Ebay, 10 for $15 US plus $15 US shipping, so I'm looking at $40 CDN for 8 extra bulbs & they are unavailable on Mouser. Do you know of any replacement Bulbs? If not I'm thinking about wiring white LEDs in the GE-335 sockets behind the blue covers.