📋 Overview
This miniature DC-DC step-down converter takes an 8–24V DC input (nominally 12V) and delivers a clean, regulated 6V DC output at up to 2.5A (15W maximum). It's a waterproof, straightforward way to power 6V electronics — including classic automobile gauges — directly from a 12V battery, vehicle system, or wall adapter.
This model is especially popular for 6V-to-12V automobile conversions: if your vehicle's electrical system has been upgraded from 6V to 12V but the original dashboard gauges still require 6V, this converter lets you keep the factory gauges running correctly without rewiring or replacing them.
Built as a non-isolated buck (step-down) converter, it operates at over 96% efficiency, so very little power is wasted as heat even under full load. The epoxy-sealed housing makes it safe for outdoor, automotive, or otherwise exposed installations.
⭐ Key Features
- Regulated 6V output — Clean, stable power for 6V gauges, accessories, and legacy electronics
- Wide input range — Accepts 8–24V DC, ideal for 12V nominal systems with voltage sag or charging spikes
- Epoxy-sealed, waterproof housing — Safe for outdoor, automotive, and marine use
- High efficiency — Greater than 96% efficient, minimal heat generation
- Built-in protection — Overload, over-current, over-voltage, and low-voltage protection with automatic recovery
- Compact and lightweight — Easy to mount behind a dashboard or tuck into an enclosure
📊 Specifications
| Specification | Value |
|---|
| Envistia Model Number | F23J6V2.5A4S |
| Input Voltage Range | 8–24V DC |
| Nominal Input | 12V DC |
| Output Voltage | 6V |
| Max Output Current | 2.5A |
| Max Output Power | 15W |
| Approx. Max Input Current (at full load, 12V in) | ~1.25A |
| Quiescent Current (no load) | <10mA |
| Efficiency | >96% |
| Operating Temperature | -40°C to +70°C |
| Size (L × W × H) | Approx. 38 × 27 × 23 mm (1.50 × 1.06 × 0.91 inches) L × W × H (52 mm / 2.05 inches overall length including mounting tabs) |
| Weight | Approx. 30g |
| Input & Output Wire Length | Approx. 12cm (4.7 inches) per lead |
| Input & Output Wire Size | 0.5mm² cross-sectional area, equivalent to ~20 AWG |
| Case Color | White |
| Housing | Epoxy-sealed, waterproof |
🔌 Wiring & Connections
Two pairs of wires — no pins or connectors needed. Simply splice, solder, or crimp into your circuit.
| Wire Color | Function |
|---|
| Red (input side) | Input +V — connect to your 12V positive supply |
| Black (input side) | Input Ground — connect to your 12V negative/ground |
| Red (output side) | Output +V — connect to your load's positive terminal |
| Yellow (output side) | Output Ground — connect to your load's negative/ground terminal |
Wire gauge: all leads are 0.5mm² cross-sectional area (20 AWG).
⚠️ Important: Double-check polarity before powering up. Reversing the input wires can damage the converter, and reversing the output wires can damage your connected device.
⚠️ Important Notes
Your 12V input power source must be able to supply at least as much power as your load will draw from the output, divided by the converter's efficiency (~96%). If the input source can't keep up, the output voltage will fold back (sag) rather than deliver the full 6V. See the full User Guide for wiring diagrams and a detailed power-budget walkthrough.
📦 What's in the Box
- 1× 12V to 6V 2.5A Mini DC-DC Step-Down Converter (F23J6V2.5A4S)
🎯 Applications
- Classic car gauge conversions — Run original 6V dashboard gauges when a vehicle has been converted from a 6V to a 12V electrical system
- 6V accessory and lighting power — Power vintage 6V accessories, radios, or lighting from a modern 12V source
- Sensor and remote monitoring power — Power 6V sensors or instrumentation from a 12V battery or solar setup
- Retrofit and restoration projects — Keep original 6V equipment functional without rewiring the whole electrical system
📄 Documentation & Resources
🛒 Other Models in the F23J Series
Sold and supported by . Ships from the USA. For wiring diagrams, sample code, and troubleshooting, see the User Guide tab on this product page. The manufacturer and Envistia LLC (dba Envistia Mall) are not responsible for any damages or losses resulting from the use of this product. Always follow proper electrical safety practices when working with electronic components. Specifications are based on manufacturer data and are subject to change without notice.
