Best 300w Switch Power Supply

Nobsound G2 PRO Hi-Fi 300W Subwoofer Power Amplifier Mono Channel Class D SUB Audio Amp

With PBTL/SUB switch: convenient to use G2 PRO as full frequency amp or subwoofer amp, a SUB output is specially designed for active subwoofer. G2 PRO can connect to both passive and active subwoofers. And two G2 PRO can be used to drive left and right channel independently to avoid mutual interference..
Max 300W output power: using TPA3255D2 amp chip and equipped with 32V/5A large power supply, enough to drive 320W passive speakers or subwoofers. It also has a good match with outdoor/ bookshelf/ computer/ desktop /ceiling /floor standing speakers..
Best design and HiFi sound: with a gain switch to allow 2-level of output level setting (32/36 dB) and SUB frequency adjustment (40-300Hz). It also has built-in speaker protection circuit, low-pass filter to guarantee no audible noise even at high power output, SUB signal and amp can output at the same time to bring HiFi listening experience..
Mini size with exquisite appearance: mono integrated class D amplifier, simple compact design but with powerful function, more fashionable and durable solid aluminum chassis, very suitable for HiFi home and desktop audio system use..

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Securitron AQU126 Power Supply, 6 Ampere/12V DC

300W high voltage power supply with single output, you can use it to generate the high voltage output..
Application: High voltage electric field, clean air, clean smoke, electrostatic air cleaner etc..
This high voltage power supply has shortcut protection and preventing spark-over protection..

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5.76CFM Solar Pond aerator With 4pcs 100W solar panels, 300W Pond & Lake Aerator with 24V 5ah Power Box,100' Weighted Tubing, With Faster Sinking Diffusers

☀️ [Upgraded 400W Lithium Battery Solar Aeration Pump Kit]: Solar Pond Aeration Pump Kit includes 100W*4 solar panels and 5.76CFM (300W) pond aeration pump and 5 Ah waterproof power box with switch. The newly upgraded and most comprehensive aeration pump system simplifies tedious steps for users..
【Specially built for anti-floating diffuser】Using anti-rust and anti-corrosion base, changing the traditional whole piece of pure iron base, the base opens faster when the base opens downward, and the diffuser is not easy to float. Diffuser aeration holes are denser, producing air bubbles more evenly and faster. Use explosion-proof diffuser panels to eliminate diffuser cracking problems..
【Integrated 24V 5Ah Power Box】: The creative controller and battery are perfectly matched, just press the switch to control the water pump to start and stop. There is no need for complicated settings, the power box controller will automatically adjust the solar panel and battery voltage to make the water pump work more stably. Do not expose to the sun and rain and keep ventilated for use. (20-30 minutes stop working for normal charging).

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Volvox sp, Living

【High Precision, Low Ripple, Big LED Display, Output Switch Control】NICE-POWER 120V 3A DC power supply is a professional power supply regulator with high accuracy of 0.01V and 0.001A, low ripple of DC power supply. The backlit 4-digits LED display has the advantage of high resolution, which can be easily viewed even if you are in low-light conditions . Adjust the required voltage and current through the output switch button without the actual output power, safer and more energy efficient..
【CE & FCC Certification, Multiple Protection, Various Application】Lab power supplies have passed CE & FCC Certification. 120V DC power supply has multiple protections: overvoltage protection, overcurrent protection, overheating protection, over power protection, short circuit protection, leakage protection. DC power supply is suitable for LiFePO4 battery charging, arduino project, laboratories, schools, electronic maintenance , electrolysis, electroplating, lamp test, aging test, DIY, etc..
【Front Power Switch , Stable Vertical Design, Lightweight and Portable】The front power switch is very convenient. Bench power supply adopts stable vertical design, DC power supply has shock absorber rubber feet at the bottom, so it will be safer and more stable during ....

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ROCKPALS 300W Portable Power Station 280wh 78000mAh Solar Generator with 110V Pure Sine Wave AC Outlet USB-C PD Input/Output QC 3.0 CPAP Backup Lithium Battery for Outdoor Camping Emergency

POWERFUL PORTABLE POWER STATION: The latest ROCKPALS 300 is equipped with 280wh (10.8V/26Ah) lithium-ion battery pack, has enough power to charge....
MULTI FUNCTION OUTPUTS FOR CHOICE: Rockpals 300w portable power station features 1*pure since wave 110V AC outlets(300w rated, 500w peak).
FAST CHARGING: Quick charge USB 3.0 and 30W USB-C PD output for 40% faster charge, the Rockpower 300 power station for camping can meet the power....
EFFICIENT RECHARGING METHODS: 1)Built-in professional MPPT technology, the portable solar generator provides faster solar recharge rates for ROCKPALS....
SAFE AND RELIABLE: Backup battery power supply use battery management system (BMS) to improve battery utilization, extend battery life through short....

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2 Channel Bluetooth 5.0 Power Amplifier Stereo Audio Amp 200W APTX-HD Nobsound NS-15G PRO

QCC3034 Bluetooth & ES9018K2M chip: QCC3034 Bluetooth chip supports SBC /AAC /APTX /APTX-HD, lossless transmission with no delay. And add ES9018K2M as independent decoding chip, higher resolution brings better quality sound..
Tone off design and HiFi clear sound: more delicate and smooth sound can be enjoyed by adjusting treble / bass knob, presenting music with rousing highs and deep lows, also with bypass function to enjoy original sound..
Strong compatibility and large output power: with RCA and Bluetooth inputs, adopting 2PCS TPA3116 chip, max output power can reach 200W, comes with 19V power supply, can drive 200W (8Ω) or 300W(4Ω) speakers..
Unique design in appearance and technology: AUX / Bluetooth switch with red / blue indicator.
customized black aluminum case with multiprocess fine treatment, CNC precision cutting.
unique knurling knob with strong metal feelings.
metal DC outlet, no electric sparks flying..
Mini size and easy use but powerful and practical: with perfect protection circuit, perfectly suitable for desktop or a smaller space in home or office, easy to connect to your audio system, especially designed for the audiophiles who pursue HiFi sound..

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Allied Telesyn SL-8320BTX (AL-A300ATX) ATX12V V2.2 300W 80mm Fan PSU Bulk

Allied 300W 20+4-pin ATX PSU w/SATA General Features: 300 watts 115V, 230V switchable power supply.
60/50Hz power draw One (1) 12-inch 20+4-pin ATX power connector.
One (1) 12-inch 4-pin 12V ATX power connector Four (4) large Molex 4-pin power connectors.
One (1) floppy drive power connector One (1) Serial ATA power connector Power Specifications:.

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ROCKPALS 300W Portable Power Station with 100W Solar Panel, Solar Generator with Panel Included for Backup Power, Outdoor Adventure and Camping

2*dc port(12V/5A, 60W max), 2*USB 3.1A, 1*QC charge 3.0 USB and 1*USB-C PD output (20V/1.5A, 30W max) can charge your small digital devices effectively.
FAST CHARGING: Quick charge USB 3.0 and 30W USB-C PD output for 40% faster charge, the Rockpower 300 power station for camping can meet the power supply for all your PD devices, from smartphones to laptops, at top speed - revive your MacBook Pro in only 3-4 hours.
EFFICIENT RECHARGING METHODS: 1)Built-in professional MPPT technology, the portable solar generator provides faster solar recharge rates for ROCKPALS 100W solar panel (sold separately) about 4.5-6.5 hrs.
2)Recharge from an AC wall outlet about 4.5-5.5 hrs.
3)It also can be full charged from a USB-C 30W PD input by wall outlet. 4)The portable generator can be charged from a carport about 6-7 hours while on-the-road/off-road. (Support pass through for DC and USB not for AC).
SAFE AND RELIABLE: Backup battery power supply use battery management system (BMS) to improve battery utilization, extend battery life through short protection, overcurrent protection, overvoltage protection, overload protection, and overheating protection.
With PURE SINE WAVE function charge your devices more stable and safety without damage and reduces a....

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Atomic Generator (Original mix)

...RGEABILITY: It takes only 2 hours to recharge 80% battery of the power station through the wall outlet and 60W PD USB-C port simultaneously. You can also recharge your power station with an AC adapator when at home, through the car outlet during a road trip or simply use a Jackery SolarSaga 100..
SAFE & STEADY POWER SUPPLY: Armed with a 293Wh lithium-ion battery pack, the Explorer 300 features 2 Pure Sine Wave AC outlets that deliver stable and safe 300W power. The portable power station weighs only 7.1 pounds. You can simply rest assured in outdoor off-grid activities..
POWER YOUR EXPECTATIONS: Featuring 2* AC outlet, 1* PD 60W USB-C port (input/output supported) , 1* fast charge 3.0 port, 1*USB-A port and 1* DC car port, the power station can recharge itself and charge (up to) 6 devices (e.g.Drones, Macbook, Cameras, etc.) at the same time to satisfy your outdoor needs..
GREEN POWER SUPPLY: The power station is compatible with the Jackery SolarSaga 100 solar panel. The integrated MPPT controller enables the solar generator set to operate at its max power point, so that it speeds up the battery recharge, making them ideal portable power kits for tent camping, overland journey and etc..
WHAT YOU GET: 1* Jackery Explorer 300 Portable Power Station , 1*AC ....

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