Im re-booting this thread.
My first sail of the season extended into the evening on Memorial Day. I soon realized I had no bow navigation light. Once back in port I looked into it and found the cause to be a burned out incandescent bulb. No problem. Except for finding an off the shelf "exact" replacement.
The light is an Aqua Signal Series 20 Bi-color bow lite. Its not the original light, but it is the exact same model. The original was replaced with a new unit about 5 years ago when the anchor roller went on. The burned out bulb is marked as:
"GE 504 III 12v 5w Hungary"
But that dosent cross link to anything I could find.
West Marine sells these....
https://www.westmarine.com/buy/aqua-sig ... ecordNum=5
but they do not stock them
and Aqua Signal says the bulbs are halogen. (note the replacement above is not halogen, and neither was the bulb I removed from the fixture)
https://www.aquasignal.com.au/series-20/
They also explain how the light is certified with the bulb in it and an exact replacement is required the retain the certification.
West Marine does stock a halogen replacement, which I bought, for the time being. So I'm legal (or am I ???)
https://www.westmarine.com/buy/ancor--h ... ecordNum=8
but at $15 per bulb I figure its time to make she switch to LEDs. Not only that, when I switch on the Nav light circuit there is an additional bulb that lights a compass in the cockpit and another atop the mast to illuminate the windex (I love that light for night sails). Sometimes, I swear I hear my house battery crying.
So looking into LED's. I find BWY sells these:
http://shop.bwyachts.com/product-p/8406-1v0.htm
if I want to buy them individually
and these
http://shop.bwyachts.com/product-p/8408-1v4.htm
If I want a set. (be sure to choose yes for the deck mounted lights option)
So the bayonet style LED bulbs look a bit different if bought single vs as a set (one version clearly has more LEDs). If you read it there is conflicting info whether or not a "white" LED bulb can be used with a colored lens (not a "warm white" or "cool white".... just white). These questions are probably better off directed to BWYgirl. But if you know, please chime in.
In making a changeover to LEDs I don't want to get inundated with bugs at night because my nav lights are overly bright (especially the aft light). But I see no lumen rating listed for the BWY LED bulbs. Ditto for the official Aqua Signal replacement bulbs. The "unofficial" 12v 5w halogen replacement I bought says 5 CP, which Google says means 5 Candle Power (which seems way low). And as a measure of light intensity a CP is close to, but not exactly the same as, a lumen. And most other small LED bulbs often list 100 lumens or more.
This is frustrating.... I mean how many sailors does it take to change a light bulb????
