On my 2-8-2 Loco, I purchased a Brass Tender light from Walthers. I then painted the "Housing", installed it to the top of the tender. I put the Grain of wheat bulb in the housing with the ORIGINAL wires attatched back down under the housing( drilled 2 holes first). Once the paint was dry, I weathered the light with dullcoat spray. This way I could use the original circuits. When I put in a decoder, all I had to do was insert the decoder in the 8 pin connector. Lighting was therefore already, ready!
PS
I think the housing was Detail Graphics... But I cannot remember for sure
PS
I think the housing was Detail Graphics... But I cannot remember for sure