Mercury 12V 300W Modified Sine Wave Inverter with USB
12V 300W modified sine wave inverter for camping, vans & back-up. 230V output, USB socket, protections included.
The Mercury 12V Modified Sine Wave Inverter (300W) converts 12V battery power into 230V mains electricity to run standard household equipment anywhere. With over 85% efficiency, it delivers reliable performance while minimising energy loss. The inverter's soft start function reduces the risk of shutdown when powering large inductive loads, and built-in protections guard against low or over voltage, short circuit, overload, and overheating.
Equipped with a built-in 500mA USB socket, it allows convenient charging of phones and small devices. The LED and siren fault indicator alerts you to any operational issues, while the low no-load current helps preserve battery life. This inverter is an ideal power solution for camping trips, commercial vans, and emergency back-up charging.
Key Features
- Over 85% conversion efficiency
- Soft start for large inductive loads
- Low/over voltage, short circuit, overload, and overheat protection
- Built-in 500mA USB socket
- LED and siren fault indicator
- Input voltage: 12V DC (max 15V DC)
- Output: 230V AC, 300W
- 1 mains outlet
- USB output current: 0.5A
- Includes 1 pair of 800mm DC cables with ring end terminals and spare blade fuse
Please note: Pure sine wave inverters are better suited for equipment with induction loads, voltage sensitive devices, or audio equipment. Always check that this inverter is suitable for the appliance you wish to power.
Need larger quantities? Need additional quantities? Get in touch and we'll arrange it for you.
- Dispatched within 0-2 business days
- Delivery to United States: 3-5 business days*
- Free Shipping Included
Always follow local regulations and product guidance.
Free standard delivery on Canadian mainland orders. Express delivery options and international shipping available at checkout.
We offer a 30-day money-back guarantee on most products. For faulty items, contact us within 14 days for a replacement or refund.
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