Converting to LED lights to the outside of your rig

austinjenna wrote:

Yeah, 24 SMD LED's are not 400 or even 100 lumens, probably. You certainly don't need that much output for a marker light. It also makes a difference as to the actual die type used in the LED panel. IOW, a 5050 LED is brighter than a 3628 LED.

If Barney says they are the same or better, then it would be a fairly accurate description of the output, more accurate than an Asian E Bay merchant trying to sell LED bulbs with the other 10,000 vendors and inflating the numbers.

I'd suggest to forget about lumen output and buy a couple LED replacements based on anecdotal assessment. Install them and see if you like them, then order the remaining.

I wasn't talking about the marker lights but rather the interior lights that he mentioned. I have LED's now that the wife doesn't like so I was looking at others, you cant ignore the lumen output, that's like saying a 15w bulb is the same as a 40watt. They are not, if I am replacing 2 921 bulbs in a fixture that together produce 500 lumens, that's quite a difference if the LED's produce 200 that is quite a reduction in light output.

OK
Yes, theoretically, it would be a reduction in output of light. No argument there. The point I was trying to make is that there is large disparity in advertized ratings and I don't need/want to be a lighting engineer in order to illuminate the interior of my RV. What I see that works for most folks and myself, is to buy a couple or a few of a certain type/s and if results are good, buy what's needed.

FWIW, I used the panel type LED's and made my own fixtures. The fixtures are flat and only protrude 1/2" down from the ceiling. My ceiling is low. I mounted the LED panel onto a piece of aluminum sheet. It is screwed into the ceiling paneling. The aluminum also serves as a heatsink and the glass with frame slides onto the aluminum. It's about as easy as I can do it.

These ganged fixtures on an additional aluminum plate cover junction boxes for AC and DC wiring: