The LAUNCH ELA400 Digital Power Supply delivers a maximum output power of 4,000 W. It supports flexible voltage and current adjustment, making it capable of handling various demanding operating conditions across both high- and low-voltage ranges.
Why Every Auto Repair Shop Needs LAUNCH ELA400 Digital Power Supply
Traditional single-voltage power supplies can no longer handle full EV high-voltage offline testing and fuel vehicle low-voltage diagnostics. The LAUNCH ELA400 is a 4000W dual-circuit intelligent digital power supply.
It separates high-voltage and low-voltage working circuits completely, delivers ultra-stable adjustable DC output, and comes with all-round independent safety protection. One machine covers all maintenance scenarios for new energy EVs, hybrid cars, and gasoline/diesel vehiclescut your equipment investment and upgrade your workshops EV repair capacity instantly.
1. Dual Independent Circuits, No Cross Interference
The biggest pain point of cheap power supplies: high-voltage breakdown damages low-voltage circuits, causing costly component burnout. ELA400 solves this with fully isolated dual modules:
- Independent High-Voltage Circuit: 50V900V, 05A DC adjustable, supports offline testing of EV compressors, motor controllers, OBC onboard chargers, high-voltage battery modules, and PDU power distribution units.
- Independent Low-Voltage Circuit: 0V50V, 015A DC adjustable, simulates vehicle 12V/24V battery power for ECU programming, DCDC converter testing, and fuel vehicle electrical troubleshooting.
- Two circuits run separately with individual fuses, adjustable knobs, and power switches. Test high-voltage assemblies and low-voltage ECUs at the same time without mutual impact.
2. Full-Range Independent Safety Protection (Zero Risk for High-Voltage Work)
High-voltage EV repair brings huge safety hazardsELA400 sets 3-layer separated protection systems for input, high-voltage output, low-voltage output:
- Undervoltage, Overvoltage, Overcurrent, Short Circuit, Overheat auto-trigger protection
- Instant power cut + loud audible alarm once faults detected
- Built-in current limiting for high-voltage channel to avoid sudden current surges damaging expensive EV high-voltage parts
No more accidental component damage or electric shock risks during daily repair work.
3. 4000W Max Stable Power, High Precision Adjustment
- Total max output power: 4000W, stable continuous operation for long-hour offline component testing
- Ultra-fine adjustment precision: Voltage step 1V, Current step 0.1A
- Mechanical rotary knobs for voltage/current tuning, intuitive and easy to operate without complicated touchscreen menus
- Clear 8-segment LED digital tube dual display: Real-time readout of HV/LV voltage & current at a glance
4. Bluetooth Linkage with LAUNCH X-431 Diagnostic Tablet
Perfect match for LAUNCH X-431 Euro TAB III and all mainstream X431 diagnostic tools via Bluetooth wireless connection. You can monitor power supply data remotely on your diagnostic tablet, streamline EV high-voltage diagnostic workflows, and finish offline testing without repeatedly walking back and forth to adjust the power unit.
5. Universal Global Design, Ready-to-Use Out of Box
- Wide input AC: AC100~240V@20A, works in US, EU, UK, Australia, Asia and all regions
- Complete set of multi-country power cords (US / UK / EU / AU plugs included) no extra adapters needed
- All matching high/low voltage test cables, alligator clips, banana jumper wires included in the package
- Portable heavy-duty carry handle, compact industrial rugged housing, working temperature -10 ~ 65, fits cold outdoor repair bays and hot indoor workshops
- Lightweight 11kg body, dimension 395315265mm, saves valuable workshop counter space
Core Application Scenarios
EV High-Voltage Offline Testing
Test air conditioning compressors, motor inverters, onboard chargers, high-voltage distribution boxes, battery management systems offline without vehicle assembly
Hybrid & Fuel Vehicle Electrical Repair
Simulate stable 12V/24V power for ECU coding, module flash programming, DCDC converter testing, light system and starter circuit troubleshooting
Auto Lab & Component R&D Test
Precision adjustable DC power for automotive electronic component aging, performance verification and fault simulation
Fleet & Dealership Service Center
All-in-one dual-voltage equipment replaces two separate power supplies, reduces workshop equipment cost
Full Technical Specifications
Package includes:
1pc x main unit
1pc x US-standard AC power cord
1pc x UK-standard AC power cord
1pc x AU-standard AC power cord
1pc x EU-standard AC power cord
1pc x High Voltage Extension Cable
1pc x High Voltage Wire(alligator clip-fits)
1pc x High Voltage Jumper Cable(4mm Banana plug)
1pc x Black Low Voltage wire(alligator clip-fits)
1pc x Red Low Voltage wire(alligator clip-fits)
1pc x User Manual
1pc x Packing list








