Review on Super Bright T10 921 922 912 LED Bulbs - Soft White Light for 12V RV Ceiling Dome Light - RV Interior Lighting for Trailer, Camper, Boat - 600 Lumens - Pack of 10 by Michael Willis

4 years ago replaced all 12v cabin bulbs in his 5th wheel with LEDs. We noticed that it was pretty dull inside (the windows were covered with Reflectix) so I replaced one of the LED lightbulbs with the only extra one I had. Doesn't matter! So I ordered 20 of these to replace the remaining bulbs. First thing I found was that the new bulbs were about twice as bright as even a slightly used old bulb, so I even swapped them out. Now when we turn on the lights, it's like a soccer game under the lights! If you're paying for electricity, these bulbs will pay for themselves by using less energy. If not, they're still worth having as they run much colder than traditional incandescent bulbs. They reduce the total number of amps you use, and when you're on the air they should use less battery.