
Designed for people who need to power a laptop or device from a vehicle's DC power source, like in a fleet vehicle, emergency services rig, or any mobile work setup where AC outlets aren't available. Buy Now at Newegg
- 100W power delivery output
- 3ft cable length
- 11V DC and 16V DC input support

Useful for electronics hobbyists or anyone building custom power supplies who needs to step down a DC voltage to a specific lower voltage, like powering a 5V microcontroller from a 12V source. Buy Now at Newegg
- 8-40V to 1.25-36V input-output range
- Professional CC CV buck converter module
- Adjustable constant current and voltage output
- High-efficiency step-down power conversion

Handy for electronics projects where you need to power multiple USB devices or microcontrollers from a higher-voltage source, like a 12V battery or solar panel, without needing separate regulators for each one. Buy Now at Newegg
- Steps down 12V 24V 40V DC to 5V
- Provides 5A total power output
- Four dedicated USB charging ports
- Compatible with phone, MP3, MP4, and car equipment
- Model: A5268

Useful if you travel frequently to Europe and want to avoid the bulk of a standard adapter, since the plating adds a layer of corrosion resistance that basic plug adapters typically skip. Buy Now at Newegg
- Rhodium plated connectors
- 24K gold plated contacts
- High-fidelity audio power plug
- Transparent EU power plug design
- Model: BG-male

Useful for travelers or expats who need to run appliances from one country on the electrical system of another, since it adjusts voltage output to match what your device requires. Buy Now at Newegg
- Adjustable output voltage range from 0-130V
- Integrated output volt meter and lighted power switch
- Built-in over-voltage protection for enhanced safety
- High efficiency design with zero waveform distortion
- Durable construction with high-quality copper coil

A practical pickup for anyone running 48V accessories or charging a 48V battery bank from a 12V vehicle system, since it handles up to 480W without needing a separate power source. Buy Now at Newegg
- 480W output power
- 95% high conversion efficiency
- Comprehensive short-circuit and overload protection
- Waterproof, dustproof, and shockproof aluminum shell
- Versatile compatibility for mobile electronics

Useful for powering 12V equipment like LED strips, radio gear, or other DC devices directly from a standard wall outlet, without needing a battery or separate charging setup. Buy Now at Newegg
- 600W high power output
- Three independent output channels
- Intelligent thermal protection and cooling fan
- Comprehensive overload and short circuit safety protections
- Durable frosted aluminum alloy casing

Designed for off-grid setups like cabins, RVs, or backup power systems, this controller manages how solar panels charge your battery bank, and the MPPT technology pulls more usable power from your panels compared to older PWM-style controllers. The 50A rating suits mid-sized systems, typically handling 600 to 800 watts of solar input depending on your battery voltage. Buy Now at Newegg
- 98% MPPT solar energy conversion efficiency
- 50A maximum charging current capacity
- Compatible with AGM, gel, flooded, and lithium batteries
- Supports up to 1320W solar panel arrays
- Built-in Bluetooth for remote mobile monitoring

Handy for anyone who regularly tests electronics or runs multiple small devices with different voltage requirements, since the adjustable output and included plug assortment means one adapter handles what would otherwise require several separate ones. Buy Now at Newegg
- Adjustable output voltage from 3V to 24V
- High 3A current capacity
- Includes 8 interchangeable connector plugs
- Compatible with various DC devices

Travelers who frequently move between countries will get the most use out of this, since the six interchangeable plugs cover the most common outlet types worldwide and the 140W USB-C port is fast enough to charge a laptop rather than just phones and tablets. Buy Now at Newegg
- Charge six devices simultaneously
- Compatible in over 150 countries
- 140W USB-C port for fast laptop charging
- Advanced GaN technology for compact, efficient charging
- Integrated 10A fuse for surge protection

Handy for electronics hobbyists or anyone building a custom power circuit who needs to step down a voltage source to a specific output level without buying a fixed-voltage regulator for every project. Buy Now at Newegg
- Adjustable DC-DC step-down voltage regulator
- Constant current and constant voltage output modes
- High-efficiency LM2596S power conversion
- Integrated battery charging capability
- Compact module for custom electronics projects

A bench power supply is the kind of tool that pays for itself quickly if you're doing any electronics work, prototyping, or testing circuits, since it gives you a stable, adjustable voltage source instead of relying on batteries or wall adapters. The compact size makes it a reasonable fit for a small workbench or hobbyist setup where space is limited. Buy Now at Newegg
- Reliable 12V DC power conversion
- Simple plug-in operation
- Universal screw-type connection terminals
- Electronic overload and short-circuit protection
- Fuse-protected with auto-reset

Useful for electronics hobbyists or engineers who need a regulated output voltage regardless of whether the input is higher or lower than the target, which is something a standard buck or boost converter alone can't handle. Buy Now at Newegg
- Automatic buck-boost voltage stabilization
- Wide DC10-35V input range
- Adjustable 1-35V output range
- High 80W power capacity
- Designed for vehicle charging applications

The GCZ jump starter delivers 2,000 amps of peak current, which is enough to start most gas engines and diesel trucks, and at $40 it's $49 off the $89 list price. Buy Now at Walmart
- 2000A power starts 8.0L gas and 6.0L diesel engines
- Safe spark-resistant clamps with reverse polarity protection
- 12000mAh power bank with dual USB charging ports
- Integrated LED flashlight with SOS and strobe modes
- Lightweight 2.23lb compact design for easy storage

Utrai bundles a 5,000A jump starter with a 150-PSI air compressor in one unit, which covers two of the more common roadside needs without carrying separate tools. At $57, that's $53 off the $110 list price. Buy Now at Walmart
- 5000A peak current jump-starts gas and diesel engines
- Integrated 150PSI air compressor for quick inflation
- QC 3.0 port charges devices 4x faster
- Safety protections against reverse polarity and short circuits
- Rugged design works in extreme temperatures -4F to 140F

A bench power supply is a staple for electronics hobbyists, engineers, or anyone doing circuit work who needs a stable, adjustable voltage source at their workbench rather than relying on batteries or wall adapters. Buy Now at Newegg
- 13.8V DC regulated power output
- 5A constant and 7A surge amperage
- Universal hardwired screw-type connection terminals
- Built-in electronic overload and short-circuit protection
- Integrated cooling fan and heatsink

Useful for anyone doing electrical repairs on older or industrial braking systems where a dedicated rectifier is needed to convert AC to DC for the brake coil. Buy Now at Newegg
- 5A ZL2 ZL3 rectifier
- AC220/380V input
- DC99/170V brake output
- Model: ZL2