Lightbulb problems: fixture or wiring?

stevennlv wrote:
OK, so cheap bulbs can't tolerate fluctuations from crappy converter.

The converter is beyond my means and ability to do much about right now. I can look to see if there are obvious issues like corrosion or loose wires, but that's about as deep as I can get right now due to injuries and lack of funds.

It doesn't surprise me one bit to find out this thing probably has a low quality and / or poorly installed converter.

We've been in this thing 6 months and everytime we turn around I'm having to do some kind of small maintenance to it due to either the lack of original quality or neglect from the first owner.

The bulbs I'm having issues with were purchased at camping world for $15 each. Personally I don't consider that cheap. But, it is what is.

So, after I figured out the type I need I saved two different ones at amazon to purchase in the future:

Bulb 1


Bulb 2

Would either of these be worth buying?

If not can someone drop a link to a quality replacement.

NB: I have no idea how any of this works. It's not like the old bulbs where I could just read the fixture and get the appropriate bulb. IDK if I can put totally dif "bulbs" in it? What I do know is that there's not much room in these fixtures and I won't be able to get anything too much bigger or shaped radically differently in to them.

And, for curiosities sake I just pulled the cover off of every bulb in the whole trailer. And all of them have what looks to me like scorch marks around the socket where the LED boards plug in. Is that normal or something I should worry about?

I would steer clear of both of the ones in your links.

#1, no specs in current draw, voltage range or even color temperature..

#2, no specs on voltage range or color temperature, does state amperage as .08A which is nothing more than a night light..

Both appear to be same design and from the pix uses resistors to control the current draw though the LEDs..



Better LEDs will have a bunch of parts on the BACK of the LED panel (IE switching current regulator)..

Looks like these..



Better LEDs manufacturers will state the voltage range, the current draw (or wattage) AND give you choice of color temperature stated in Kelvin (IE 2,700K which is incadescent, 4,000K which is similar to florescent light, 5,000K which is similar to sunlight).

The ones you linked are over priced and most likely will not be bright at all..

From what I can tell, you are looking for 921 LED replacements so use that in your search..

HERE is one that states voltage range, color temp and wattage.. Not to mention has a picture of front and back which at least tells me it has a constant current regulator..



Somewhere in the questions someone stated it is equivalent to 12W incadescent..

Keep looking.