Earlier this year I replaced all the interior lightbulbs in my trailer with these:
Amazon.com: LED 2W 12V White Omni Bulb BA15S 1156 P21W Brake Tail 18 5050 SM: Home Improvement.
Since then my wife and I have gone camping a number of times. We like the lights very much and are able to dry camp for two days with just the two group-24 deep cycle batteries that are installed in the trailer. The electrical load during these periods have been the furnace fan for a few hours, battery chargers for cell phones, water pump, and lights at night. I think that we can extend our time without charging the batteries to three or four nights, but have not tried yet. Keep in mind that the temperatures have been mild, so we only run the furnace when we get up in the morning, to warm things up a bit.
We did have a problem with one lightbulb. One of the LEDs started flickering. I think it's due to a bad solder joint. I'm going to contact the supplier to see if they will exchange it.
Amazon.com: LED 2W 12V White Omni Bulb BA15S 1156 P21W Brake Tail 18 5050 SM: Home Improvement.
Since then my wife and I have gone camping a number of times. We like the lights very much and are able to dry camp for two days with just the two group-24 deep cycle batteries that are installed in the trailer. The electrical load during these periods have been the furnace fan for a few hours, battery chargers for cell phones, water pump, and lights at night. I think that we can extend our time without charging the batteries to three or four nights, but have not tried yet. Keep in mind that the temperatures have been mild, so we only run the furnace when we get up in the morning, to warm things up a bit.
We did have a problem with one lightbulb. One of the LEDs started flickering. I think it's due to a bad solder joint. I'm going to contact the supplier to see if they will exchange it.