Today, I replaced 20 incandescent bulbs (type 1141 = 19 each, C921 = 1 each) in our 19-foot Bambi, with "warm white" LED bulbs from EverSale.com ($4.99 each, plus $4.90 shipping). The color and brightness are almost exactly the same, with the LEDs being very slightly brighter than the original incandescent bulbs. Also, the LED bulbs are just a little bit longer. However, all easily fit in their respective lighting fixtures with no interference.
* 1141:
Amazon.com: LED 2W 12V White Omni Bulb BA15S 1156 P21W Brake Tail 18 5050 SM: Home Improvement
* C921:
Amazon.com: LED 18x5050 2W 12V White Omni Wedge Bulb T10 194 168 2825 W5W: Home Improvement
I am impressed by the order processing and "standard" shipping speed from EverSale.com. My order was placed through Amazon.com, early Tuesday. Then, later that day, Eversale.com processed and shipped the order from Florida; the box was in transit to Arizona on Wednesday and Thursday; and the LEDs were delivered today (Friday), 3-7 days ahead of schedule.
As an aside, the bare incandescent bulbs get hot enough to burn you after being on for only a few seconds, and these LEDs are just warm to the touch after 15-20 minutes. Plus, the LEDs only draw about 15% of the current used by the incandescent bulbs, which makes LEDs great for boondocking.
While long term reliability is yet to be determined, my initial impression of EverSale.com and these specific LED bulbs is very favorable; and I plan to buy LEDs from them again.
Note: I have no connection to Amazon.com or EverSale.com, other than being a satisfied customer.