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.

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SKU: 78020952103

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Kyle
Belleville, US
★★★★★ 5
From Pixels to Problems! Great read!
Format: Hardcover
“Play Nice” offers an enjoyable deep dive into the tumultuous history of Blizzard Entertainment, chronicling its journey from a ragtag group of brilliant college students to its evolution under corporate ownership and its current state. Schreier provides fascinating insights into the antics of Blizzard’s early employees, showcasing their outlandish attitudes, relentless work ethic, and tight-knit camaraderie. The book explores how Blizzard transitioned from a company renowned for producing high-quality, polished games that left competitors in the dust to one struggling to preserve its heart and soul amid mounting corporate pressures. While the corporate side and C-suite executives are often cast in a negative light, Schreier thoughtfully examines the motivations behind their decisions, offering perspectives from all levels of the company—from executives and middle management to QA testers. This balanced approach provides a refreshing take, avoiding oversimplified blame and instead considering multiple sides of the story. And while it’s easy to villainize the suits in the boardroom, Schreier does a great job showing why some decisions were made. From executives to QA testers, he pulls back the curtain to reveal a mess of perspectives, reminding us that every bad decision has some kind of reason behind it (even if it’s still a bad decision). The book also revisits the scandals that put some serious smudges on Blizzard’s reputation, offering new angles and fresh commentary. As someone who once lived for Blizzard games—cheering at Overwatch League matches and losing entire weekends to Diablo marathons—I can’t help but root for Blizzard to find its way back to glory. And hey, if it means waiting another decade for their next masterpiece, so be it. It’s done when it’s done.
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Reviewed in the United States on January 6, 2025
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Heather R. hayton
Los Angeles, US
★★★★★ 5
Reads like your favorite succession episodes
Format: Hardcover
Great book—thoroughly researched and delightfully written! Highly recommend to all my gamers and friends from that era.
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Reviewed in the United States on December 12, 2025
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Felipe
Alexandria, US
★★★★★ 4
Great insight into an otherwise obscure world
Format: Hardcover
As someone who grew up playing blizzard's games for an unfathomable amount of hours I've always been interested into their inner workings, especially considering their downfall in recent years. This book holds a ton of information and knowledge, is well sourced, and is the work of someone with obvious deep familiarity with the industry and its particularities. Besides the information itself, the book it written in fun and interesting prose, and it keeps the rhythm fast and entertaining, so it reads more like a novel than a journalistic article. Overall, an entertaining piece of insight into a world that is normally quite unknown, even to long time gamers like myself.
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Reviewed in the United States on April 15, 2026
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alex schopf
Massapequa, US
★★★★★ 5
Great read
Format: Hardcover
Extremely interesting book
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Reviewed in the United States on March 3, 2026
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Nazih Fares
Lake Worth, US
★★★★★ 3
Great insight on what happened at Blizzard but...
Format: Kindle
My main issue with the book is the lack of non-american stories that explained the bigger picture. As a former Blizzard dev, there's much more than what happened in Irvine and Korea, with Europe's office mentioned almost as a footnote, and nothing else from the other regional stories. Shame but I guess the book would've been double the size.
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Reviewed in the United States on May 12, 2025

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