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Rockville 4F car capacitor with blue LED display

Rockville ★ 4.0/5 · ItemOracle Score Mid-Range

$49.95
Last verified 6 hours ago · Subject to change
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Rockville RXC4D 4 Farad Digital Car Capacitor, Blue LED Voltage Display, Fast Power Discharge, Noise Reduction, Perfect for Car Audio Enthusiasts

Rockville RXC4D 4 Farad car capacitor with 12V/24V surge capacity. Blue LED voltage display and noise reduction for cleaner audio. One customer notes solid build and easy installation

Highlights

  • Real-time voltage monitoring
  • High surge capacity
  • Noise reduction and durability

Pros

  • Blue LED voltage display for real-time monitoring
  • High surge capacity for power delivery
  • Noise reduction for cleaner audio output
  • Durable lucite-encapsulated circuitry
  • Easy installation

Cons

  • Mixed reports on headlight dimming
  • Blinking lights feature noted by some users
  • Some users report battery life concerns

Best For

  • car audio systems with high power demands
  • systems requiring voltage monitoring
  • installations aiming to reduce alternator noise
  • boosting bass performance during high-volume playback
  • vehicles with perceivable dimming under load
  • environments needing durable, visible capacitors

Features

  • Stores and releases power quickly with 4 Farad/12 Volt capacitor up to 24 Volt surge capacity
  • Blue LED digital display provides real-time voltage readings with flashing charge/discharge metering
  • Reduces electrical noise with IC-controlled circuitry and negative polarity protection for cleaner audio
  • Includes Lucite mounting brackets and charging resistor for secure, easy installation
  • Compact dimensions: 10.67 L x 5.32 W x 3.54 H

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