Product Description
The TriLite SW1-12BP is a full-size rotating beacon from the SkyBolt SW family, built for 12 volt DC equipment and permanently mounted. A 50 watt halogen lamp turns on a Mars gear drive at 100 to 120 flashes per minute.
The BP in the model name is the black plastic base. TriLite also makes a chromed version, the SW1-12CP, but that is a different model and is not part of this assortment.
Four dome colors are available: amber, blue, clear and red, all at the same price. The unit stands 7.5 inches high by 8 inches across, weighs about 4 pounds, and draws 4.5 amps at 12 volts DC.
What is the TriLite SW1-12BP SkyBolt rotating beacon?
The SW1-12BP is a full-sized rotating warning beacon for 12 volt DC equipment. A 50 watt halogen lamp sits behind a rotating reflector driven by a Mars gear drive, producing 100 to 120 flashes per minute. TriLite rates it for indoor or outdoor signaling, safety and warning applications. At 8 inches across it is a substantial beacon, closer in presence to a yard light than to the compact mini-strobes in the same catalog.
What does the BP in SW1-12BP mean?
Black plastic base. TriLite builds the SkyBolt SW in two base finishes, and the BP suffix identifies this one. The chromed plastic version, the SW1-12CP, is a separate model that is not stocked in this group, so do not order against the CP code expecting the black unit. If a site is standardizing on one appearance across a fleet, the base finish is the detail that gets missed on reorders.
What does the 50 watt halogen lamp give you?
Output, at the cost of current. A 50 watt halogen lamp puts out considerably more light than the 25 watt incandescent lamps in TriLite's compact beacons, which is why this unit suits larger equipment and longer sight lines. The trade-off shows up on the circuit: 4.5 amps at 12 volts DC is a real load, so check what else is on the feed before adding a second beacon to the same machine.
How fast does the SW1-12BP rotate?
TriLite lists 100 to 120 flashes per minute. That is faster than the 90 to 100 of the compact MV2 family and faster than the 75 to 90 of the heavy-duty RF6. A higher rate means the beam passes any given observer more often, which helps where people are moving through the area rather than standing still. The Mars gear drive is what turns the reflector, and TriLite documents a replacement motor for it.
Which dome color should you choose?
Amber, blue, clear and red in this assortment, all priced the same. Amber is the general warning default on work vehicles and industrial equipment. Clear gives the highest raw output because nothing filters the lamp. Blue and red tend to be used where a site codes by vehicle type or operating condition. Conventions vary by site and jurisdiction, so check your own policy before standardizing a color.
Halogen SW1 or an LED beacon?
Halogen gives you strong output now at a lower purchase price, with a lamp you will replace on a schedule and 4.5 amps drawn every hour it runs. An LED beacon costs more up front and returns that in lamp life and current draw. The SW1-12BP stays the right answer where the budget is the deciding factor or where an existing SW1 needs a direct replacement. Treat an LED unit as a different product rather than a drop-in swap, since compatibility is not something to assume.
Where is the SW1-12BP used?
Work vehicles and industrial equipment running on 12 volt DC, plus fixed warning points where mains power is not available. TriLite describes the SkyBolt SW for indoor or outdoor signaling, safety and warning use. The permanent mount suits a beacon that stays with one machine, and the full-size body earns its place where a compact beacon would be lost against the equipment around it.
Key Features
Full-size rotating beacon in the SkyBolt SW family
50 watt halogen lamp
100 to 120 flashes per minute
Durable Mars gear drive
Black plastic base
12 VDC, 4.5 amps
Permanent mount
7.5 inches high by 8 inches diameter, approximately 4 lb
Four dome colors at a single price
Rated for indoor or outdoor signaling, safety and warning use
Key Benefits
Universal Fit Guarantee
We guarantee this cover will fit any standard rectangular vent in sizes 10x4, 12x4, 12x6, or 14x6 inches, on both steel and aluminum registers. If it does not fit your rectangular vents, we will refund your purchase immediately.
Filter Quality Promise
Every filter is MERV-3 rated polyester that meets EPA standards for allergen capture. We guarantee the filter will maintain proper airflow when replaced monthly. If you experience any airflow issues with a fresh filter, contact us for immediate replacement.
Made in USA
Covers manufactured in the United States with quality materials. Filters produced to EPA MERV standards. Supporting American jobs while ensuring the highest quality for your family's health.
Expert Health & HVAC Support
Questions about allergen reduction, filter maintenance, MERV ratings, or installation? Our knowledgeable team understands both indoor air quality and HVAC systems. Real people who care about your family's breathing and health.
Technical Specifications
Frequently Asked Questions
What voltage is the TriLite SW1-12BP?
Is the SW1-12BP a permanent mount beacon?
What lamp does the SW1-12BP use and how fast does it rotate?
What does the BP in SW1-12BP mean?
What dome colors does Supply Owl carry in this family?
Order Includes
Customer Testimonials
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– Jennifer M., Portland, OR (Mother of 8-year-old with asthma)
I cannot believe the difference in dust accumulation. We used to dust furniture near vents twice a week – now maybe once a month. And my seasonal allergies are noticeably better when I am at home. The filter replacement is super easy, takes 30 seconds. Wish I had found these years ago.
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We have two cats and my husband is allergic. These filters in the bedroom have been a marriage-saver! He can actually breathe at night now. We still have the cats (obviously), but the constant sneezing and congestion is gone. The filters definitely catch pet hair – you can see it when you replace them monthly.
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As a property manager, tenants with allergies always complained about air quality. These covers have been perfect – affordable enough to install in multiple units, and the health benefit keeps tenants happy and renewing leases. I stock replacement filters and sell them at cost. Total game-changer for tenant satisfaction.
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My son has severe dust mite allergies. His allergist recommended covering vents in his bedroom. These filter covers have made such a difference – his morning congestion is almost gone. The investment in monthly filters is nothing compared to what we used to spend on allergy medications.
– Michael S., Phoenix, AZ (Father of child with dust mite allergy)
Life-changing for my daughter with asthma. We installed these in her bedroom and playroom, and her nighttime coughing has decreased dramatically. The pediatrician even noticed improvement in her breathing. We now replace filters monthly religiously – it is the best $20/month we spend for her health.




