Skip to main content ↑ ↓
Topic: Updated Bay Lights (Read 624 times) previous topic - next topic

Updated Bay Lights

20241017_151814.jpg We updated all of our bay lights to LED strip lighting. I know many have done this upgrade as well, but it's always fun to write down what you did.

Existing Fixtures
20241117_142533.jpg We had a wide variety of existing fixtures in the bays.

  • Round-shaped fixtures that held halogen bulbs, like in our previous 03.
  • As above but square-shaped fixtures.
  • V shaped fluorescent fixtures that placed the light right in your eyes and hung down far enough that they were a nuisance.


LED Strips
We wanted to have the full opening illuminated so choose to use cut to length LED strip tape.  We purchased ours from Flexfire. We have used them before, and although they are not the least expensive supplier (they offer 20-25% off discounts a few times a year), they provide excellent support, product variety, quality, efficiency, and documentation. In the past, I've had pretty mixed results with less expensive reels, but have used them, so DWMYH. We went with plain old white, but you could do a color-changing RGB and be the talk of the park!

20241015_113234.jpg 20241015_114604.jpg Specifically used . Outdoor (IP65) UltraBright Accent Series, which is their normal accent series inserted in a silicone sleeve to protect them from the elements. When you cut these to length, you will want to seal the cut ends with Electronic Grade Silicone Sealant to maintain the IP65 rating.

20241015_114249.jpg We also used Angled surface mount channel, secured to the bay with VHB tape. The channel fits behind the bay opening; you can just see the edge when you look into the bay. You can add diffusers to those channels or leave them plain. The angle really helps to direct the light into the bays for the best illumination.

Actuator Switch
20241015_104004.jpg The next decision was how to switch them on/off. You could use the existing plunger/pad that the original fixtures used. For me, these are somewhat problematic as they are not sealed, so you often have to nudge them to get them to make contact (and yes, I've cleaned them and used Cx). There are other mechanical pin switches available but instead I went with magnetic reed switches. 20241018_131917.jpg The reed was mounted in the same area of the bay opening as the original plunger (with VHB tape), and the magnet went on the door, replacing the extension pad/bumper. When choosing a reed switch, make sure you get one that can carry a few amps of current and not just an alarm sensor milliamperes switch.  For the lights we used, and our longest run, it required 1.5amps.

Power
The next item was how to power them. LEDs use constant current to provide the rated output and life. Strip lights are just a sequence of LEDs with series resistors. The resistors are sized to accept a specific input voltage, which then delivers the proper current to the LED. The LED strips we used specify a constant 12V input, so we used individual step-up/down voltage regulators to deliver the correct voltage at each strip location. These are simple devices that have Vin/Ground and provide Vout/Ground for use on the strips. I also coated them with a conformal spray to seal/protect them; a little CorrosionX would work just as well.

20241118_131525.jpg I had a couple of reasons why I used a regulator at each location. First was, I had several in my parts bin from another project, so when something is already on hand, it's going to get used! The other reason is, for the bays that had lights, there were (3) different voltage taps.. Of the (6) lighted bays, (4) used the same tap; the other (2) were spliced in elsewhere. I know one of our storage bays was added (drivers rear) so that it was wired separately, and I think one bay had the light added by someone. 

Anyway, if you have all OEM, the power should all come from the same breaker; ours is located under the white panel in the storage bay (labeled storage lights). Then, instead of using spot regulators, you could use a single larger regulator at the breaker to provide a constant 12V for all the lights. Something like Amazon.com: DROK Boost Buck Converter 9V-36V to 12V 20A 240W Aluminium Shell... would do nicely.

One could just use the existing 13.5-14 VDC house voltage, saving time and money. The strips would be a bit brighter, use more current, and generate more heat, all resulting in a shorter life. Given the amount of time these are actually on/used, that may not be a factor, or it may. Again, DWMYH.

Manual Control
20241118_131500.jpg There will always be times when you will want to override the lights, allowing you to leave them off when the bay door is open. Easy enough to wire in a rocker or push-button on/off switch; really, any switch will do the job.  I used a simple water proof push button switch mounted to the same section of ABS that holds the voltage regulator.  These are mounted up high to keep them safe.

Engine Bay
20241112_113845.jpg 20241112_113905.jpg Much the same as above, but used a manual on/off (illuminated) switch and a straight mounting channel. I used this switch: Amazon.com: Quentacy 19mm 3/4" Latching Push Button Switch 12V 48V DC LED...  This provides a lot more light than the single fixture that was in there and, in our case, was broken anyway.  There is a strip mounted on each side of the engine bay.
2000 / 36' / U320 / WTFE
WildEBeest / "Striving to put right what once went wrong"

Re: Updated Bay Lights

Reply #1 –
Steve,

While you are in/under the engine cover have you given any thought to replacing those lifting shocks with 12vdc linier actuators? That LED lighting is a supper upgrade to the OEM lighting.

Mike
Pamela & Mike 97 U 320

"It's not what happens to you, but how you react to it that matters."

Re: Updated Bay Lights

Reply #2 –
Wow Steve! That is so much more creative than what I thought of. Thank you for sharing your project. I learned a ton and may steal some of your ideas.
Michael
Michael & Ginny
Frankfort, KY
1992 U240 GV Build #4116
2007 Mini Cooper

Re: Updated Bay Lights

Reply #3 –
On the diffusers, for bays where the LEDs might fall into your line of sight, Steve used frosted diffusers.  Where that wasn't a concern and in the engine bay he used clear diffusers to protect the LED strips.  The matte diffusers Flexfire offers are more for use in accent/mood lighting rather than task/functional lighting.
Learn every day, but especially from the experiences of others. It's cheaper!  - John C. Bogle

2000 U320 36' non-slide / WildEBeest Rescue
2003 U320