LED for Puck Lights
Roger, I've been pleased with G4-WWHP12-DAC from SuperBrightLeds.com. I've replaced all the lamps in the puck fixtures in our coach with them. I've found that they are a good replacement for 10W halogen G4 bulbs in puck lights. They have a similar color and appear to me to be slight brighter.
Remove the reflector assembly by popping it out with a screwdriver. Carefully bend the pins a bit to get the light to sit well in the remaining light assembly.
I replaced the globe lights in the bathroom with 1156-WW2W-CTAC.
I replaced several of the bay lamps with 1156-CW2W-CTAC.
None of the lamps were cheap. You can find similar lamps at lower prices. I was pleased with the selection, quality, and service from SuperBrightLeds. These lamps are all rated for a wide range of voltages. My understanding and observation is that they provide consistent illumination whether the supply voltage is 12.2 V or 14.2 V.