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Topic-icon /7 LED Tail light bulb

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4 months 1 week ago #4916 by thundermotive
/7 LED Tail light bulb was created by thundermotive
I know LED replacements have been covered frequently here, but what I can't find is the tail light bulb. (Single filament bayonet base) My auto parts store has plenty of 1156 LED's which are great for the brake and turn signals. Alternately, what lumen range should I be looking for for this position?

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4 months 1 week ago #4917 by Wobbly
Replied by Wobbly on topic /7 LED Tail light bulb
I will get you some part numbers on Monday. I'm currently away from my bikes and books.

You want the brightest lamps you can obtain for the rear. I highly recommend that you not only specify the Lumen rating of the bulb, but also the Color. Tail lamp bulbs, being filtered by a red lens, are much more effective (brighter) when you specify Red LED bulbs.

Obviously, you do not have that option when you specify incandescent bulbs.

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4 months 1 week ago - 4 months 1 week ago #4918 by Wobbly
Replied by Wobbly on topic /7 LED Tail light bulb
I buy all my LED bulbs from SuperBrightLeds.Com because they have a huge selection. You're correct, it's a 12V single function bulb with a 1/2" base (what SBL calls a BA15S base). Here's the page with their 1156 selection. Click Here . Both bulbs should also have LED devices on the rear AND side so that the entire lens lights up when the brake is applied.

• I like the brightest thing they have for the brake lamp. SBL has several of these above 400 Lumens. Here's a good one.

• You want a bright tail lamp, but not so bright that the brake lamp can't be seen when it comes on. Something, again in Red, in the 125 to 150 Lumen area should work well. Here's a nice one.

Remember in a "white" incandescent bulb, only a small portion of the light passes through the red tail lamp lens. When you install a Red colored LED, then ALL the light produced passes through the lens, so this is going to be one brilliant tail lamp !!


Option
There is also the "Beacon" option from Motrrad Elicktrk. These units replace the entire bulb holder inside the tail lamp with an array of individual LED bulbs mounted on a special plate. They are very nice and made specifically to fit BMW motorcycle tail lamp housings. They are quite bright. Check out the Beacon Series of bulb replacement systems which are shown about half way down the page. Three different models, depending upon your year.

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Last edit: 4 months 1 week ago by Wobbly.

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4 months 1 week ago #4919 by thundermotive
Replied by thundermotive on topic /7 LED Tail light bulb
Thanks Wobbly. Both of those are great resources. I've ordered just the bulb for now but I probably will upgrade to the Beacon 2 and the turn signal and flasher kit in the future. Another advantage is that I will be able to use my parking lights without having to worry about running the battery down, not that I go out at night on the Beemer much.

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4 months 1 week ago - 4 months 1 week ago #4924 by Wobbly
Replied by Wobbly on topic /7 LED Tail light bulb
I have both the "Beacon" and the stock tail lamp with the super bright LED bulbs, and I think the discrete bulbs is the better way to go, but not by much. I'd award the Beacon 8 of 10, and the LED replacement bulbs 9 of 10.

► The Beacon unit I have is bright, but that's because it has 40-50 LEDs (the kind you find in conventional electronic products) soldered into in a large circuit board. This circuit board completely replaces the OEM bulb holders behind the tail lamp lens, and completely fills that space. The light units are therefore spread over the full width of the TL lens. So with the Beacon unit the lens is VERY evenly illuminated. But I don't think the LEDs in the Beacon units are "over driven" as they are in the replacement bulbs.

► The replacement bulbs in the OEM tail lamp sockets simply do everything by shear light output. They achieve this by 1) over-driving the LED chips that make up the "bulb", and 2) aiming the flat LED chips in specific directions. One of the things I like about the product from SuperBrightLeds is that they tell you the light dispersion angles. In a tail lamp, you might want most the light focused to the rear in a narrow angle, like 100°. In a speedometer illumination bulb, you might want a very broad lighting angle, like 180°. While in a blue high beam indicator LED you might want a VERY narrow light angle, like 30°.

Hope this helps.


PS. You mentioned Parking Lamp lighting. SuperBrightLeds has a 1/4 inch, single function, white light LED with a really wide light angle that works great in the front parking lamp position. It's as bright as an OEM headlamp, and can be used successfully for daytime running if the battery is in a weakened condition.

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Last edit: 4 months 1 week ago by Wobbly.

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4 months 1 week ago #4926 by Big Bill
Replied by Big Bill on topic /7 LED Tail light bulb
Is the Beacon a plug and play setup. On mine the blinkers are tied into the unit inside the tail light unit, do they have provisions for the blinkers to plug into? Thanks for any info.

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