SKU: 78020952103

Hollyland Spares - 12V/2A DC2.1 Power Adapter (for Wireless Tally System)

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Description

Hollyland Spares - 12V/2A DC2.1 Power Adapter (for Wireless Tally System)The Hollyland 12V 2A DC2. 1 Power Adapter (Model Series: HL DCA04) is the official factory spare mains power supply built specifically to drive the main station hub of the Hollyland Wireless Tally System. While generic multi voltage power bricks are easy to find, the main station box requires clean, continuous current to manage the 1. 9GHz wireless frequency conversion down to individual field lamps. This OEM power supply features an integrated

The Hollyland 12V/2A DC2.1 Power Adapter (Model Series: HL-DCA04) is the official factory spare mains power supply built specifically to drive the main station hub of the Hollyland Wireless Tally System.

While generic multi-voltage power bricks are easy to find, the main station box requires clean, continuous current to manage the 1.9GHz wireless frequency conversion down to individual field lamps. This OEM power supply features an integrated threaded locking ring to prevent accidental power drops mid-broadcast.

 

Core Electrical & Mechanical Features

  • Threaded Locking DC Barrel: The output cable ends in a specialized standard-polarity DC 2.1mm barrel plug equipped with a rotating metal security collar. Once inserted into the base station's power input, twisting the metal ring threads it tightly into the chassis, preventing the cable from being yanked out if someone trips over the cord.

  • Regulated Linear Suppressors: Built with internal over-voltage, over-current, and short-circuit protection grids. This electrical filtering stops grid-side voltage spikes from bleeding through to the transmitter, protecting the sensitive internal logic chips handling your switcher's relay data.

  • Interchangeable Wall-Prong Matrix: The transformer brick features a modular, rotating mounting plate design. Depending on regional box packaging variants (US, EU, UK, or AU), the core wall adapter slips and clicks onto the brick casing effortlessly, making it highly adaptable for international tour packaging.

Technical Specifications Matrix

Component Attribute Technical Specifications Detail
Official Model SKU HL-DCA04 (Ecosystem Designation: 12V/2A Tally Power Supply)
Primary System Use Hollyland Wireless Tally System Base Station Hub
Input Voltage Range 100V – 240V AC (Standard 50Hz / 60Hz Utility Power)
Output Electrical Rating 12V DC at 2.0 Amperes (Continuous 24-Watt Load Delivery)
Connector Interface DC 2.1mm Inner Diameter (Center-Positive configuration)
Retention Mechanism Integrated Knurled Metallic Screw-Lock Collar
Color Configuration Profile Production Matte Black

On-Set Power Safety Checklist: The Base Station can handle a range of inputs, but this adapter outputs a continuous 24-watt load. If you lose this adapter in the field and need a temporary generic replacement, double-check that your backup is explicitly rated for 12V output and Center-Positive polarity. Plugging an over-voltage adapter or a center-negative block into your Hollyland hub will bypass the safety fuses and instantly fry the internal circuit boards.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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  • Delivery to the USA:
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 78020952103

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Amazon Customer
Charlottesville, US
★★★★★ 5
Durable and good case!
Color: Black
Excellent sturdy case to protect iPad. Would buy again!
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Reviewed in the United States on June 2, 2026
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Kelley Mitchell
Chelsea, US
★★★★★ 5
Well made
Color: Blue
It’s great, better than I expected. I love I love the color and the fit is perfect. Highly recommend!
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Reviewed in the United States on May 30, 2026
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Carrie A Balashaitis
Fort Morgan, US
★★★★★ 4
Good buy
Color: Black
Sturdy and fits perfectly
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Reviewed in the United States on May 6, 2026
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Jackie P
Alexandria, US
★★★★★ 5
Sturdy iPad case
Color: Black
Great case. Sturdy and easy to install. Would purchase from this seller again.
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Reviewed in the United States on May 8, 2026
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HallMonitor
West Palm Beach, US
★★★★★ 5
Durable and Rugged
Color: Black
I've had it for a few weeks now. It was a replacement I bought after buying several vinyl type covers. This one is a good gauge of plastic and rubber. The rubber seems pretty strong and it protects the iPad well on the corners and back. The back is mostly covered except for the Apple logo in the center. In addition to protecting the corners and also protects the camera lens as the rubber after insulation is a little bit higher than the lens so when you put this down, it's not going to scratch the lens. It has a pen slot, which I like and plenty of room to grip the device if I'm carrying it from place a place or when I'm using it, I can grip the edge and not touch the screen. One of the things I would've liked included is a screen protector, but nothing covers the screen. I also miss the folio type cover because the screen will gather dust now. But, Apple screens are fairly durable so I'm not too worried about breaking it. It was easy to install. It came in as it came in a couple of pieces that you just pressed together. All the controls are obvious as they are under the rubber, but they look like keys. One more thing I might bring up is the charging port. It's easy to get to even though it's a little deep. On my iPad the touch sensor is on the on off button and it is a little harder to do than if I didn't have any case on it, but that is to be expected. It also has an easel that unfolds from the back if you want to sit it up, but I don't use it for watching anything since I have a real TV set. So far I like it and I'm glad I bought this as I don't think it's going to wear out as quickly from me handling it as the others did. The value was good as long as it lasts.
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Reviewed in the United States on April 28, 2026

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