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Low Voltage Ceiling Light For Camper (2476503)
by Trav Boi (tbillion)
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currently working on updating the lighting in my trailer,
I live in it full time and am preparing to go ff grid, so
these will be eventually powered off of a pretty large
sized 3.4V battery. each one takes 6 COB mounted star
leds. which puts them at around 13.86W per assembly. they
are attached with 3mm screws, i just happened to have a
bunch of old computer case screws around but lowes sells
3mm x 5 mm which is about what you would need. i picked
up the leds for a song something like 5$usd with the
heatsinks for 50 pcs.
Update: 8/11/17 6:03am
Ok, I added a bunc more pictures to hopefully help
explain why this design has so many holes in it... lol.
the holes in the side are to allow for routing of the
wire, in my camper there is only so many places you would
want a wire to go. I ended up printing 5 of these, one
for the entry way one for over my printer, 2 for the
middle of the room, and one for over the foot of the bed(
as the head of the bed will have my later uploaded 4 way
spot light like the one over my desk, or i may combine
the two things into this thing as a sort of COB lighting
suite.) the first middle of the room light works as a hub
to send the wires out to the entryway light, the printer
light, and the main lights. there are 4 holes in the dish
on each side where the wire inlet/outlet holes are, this
is so you can tack down the wire ends. I have used 4
conductor low voltage (telephone/alarm) wire, each
conductor is rated at 7A, the red wire is used to power
ALL the leds, the Black wire is used to Ground the entry
way light, the green is used to ground the printer light,
and the yellow grounds the rest of the main lights. 4
circuits in 1 cable. the picture of all of the lights is
labeled to show the wire combination for each light
(RY:Red/Yellow RB:Red/Black RG:Red/Green) the main hub
light is the most crowded as far as wiring goes, it took
a bit of effort to get all of the wires out of the way of
the leds. I still need to design and print some sort of
cable clam to secure the wire to the ceiling. i will
probably do that next. The LEDs are connected in parallel
using Bus wire, commonly bus wire is used for solar
panels but i find that it is very handy for things like
this as it is a flat wire that is pre tinned, which makes
soldering a breeze, it took me an hour to solder all the
leds together in their respective dishes, in contrast to
the 2 hours it took to assemble them with the hold down
screws, and orienting the leds so that they would not be
shorted by the hold down screws, and further contrast to
the 3.5 hours it took to mount them to the ceiling and
wire them up. The center hole is a singular mounting hole
so that you can attach them to the ceiling, because they
are thin and my screws are long i had to use 6 4mm flat
washers to move the housings off direct contact with the
ceiling. the next thing on my to do list is to come up
with a cover lens for them as even accidental eye contact
leaves you with polka-dots in the eyes. All in all the
light that comes off of them makes you feel like you are
in a spiffy new model home. I am very happy with the
results. i will update when the lenses are done. :)
-T
Date Published: 2021-06-20 07:16:53
Identifier: thingiverse-2476503
Item Size: 974361
Media Type: data
# Topics
lighting
COB_LED
Automotive
thingiverse
flashlight
LED_light
stl
cob
LED_3W
Lights
lightitup
3V3
light
# Collections
thingiverse
# Uploaded by
@xtream1101
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