921 replacement we tested that give better light is 921. 25-1210 SMD and I feel 13-5050 SMD will also do well. Both warm white feel same as 921.
Check descriptions at RV stores but DO NOT BUY AT 20$.
I bought them at $3 each on E-Bay.
Barbara and Laurent, Hartland Big Country 3500RL. 39 ft long and 15500 GVW.
2005 Ford F250 SD, XL F250 4x4, Long Box, 6.0L Diesel, 6 Speed Stick, Hypertech Max Energy for Fuel mileage of 21 MPusG empty, 12.6 MPusG pulling the BC. ScangaugeII for display..