Why buy the Cobra IG20SI 2.0kW Inverter Generator?
- Features a powerful 79cc Cobra 4-Stroke single-cylinder engine
- Delivers a maximum power output of 2.0kW (2000W)
- Inverter technology provides stable power for sensitive electronics
- Quiet operation with a noise level of just 61dB at 7 metres
- Up to 6 hours run time from a single 4.2L fuel tank
- Lightweight and portable design weighing only 20.8kg
Powerful & Stable Performance
The Cobra IG20SI is a versatile and economical portable generator, designed to deliver a reliable source of electrical power wherever it’s needed. At its heart is a robust 79cc Cobra 4-stroke, single-cylinder engine that provides a rated AC output of 1.6kW and a maximum output of 2.0kW. This makes it ideal for a wide variety of tasks, from powering tools on a job site to providing electricity for camping or caravanning trips.
Crucially, the IG20SI features inverter technology. This ensures a pure sine wave output, delivering clean and stable electricity that is safe for powering sensitive electronic equipment such as laptops, tablets, and televisions without risk of damage.
Quiet, Portable & Efficient
Designed for convenience, the Cobra IG20SI is both compact and lightweight. Weighing just 20.8kg, its integrated handle makes it easy to transport and position. Despite its power, it operates at a low noise level of only 61dB when measured at 7 metres, causing minimal disturbance. The generous 4.2-litre fuel tank allows for an impressive run time of up to 6 hours, ensuring you have power for extended periods without needing to refuel. Starting is straightforward with a simple and reliable recoil system.
As an authorised UK dealer for Cobra, Sims Garden Machinery offers more than just a machine in a box. With over 100 years of experience, a visit to our Stratford-upon-Avon showroom allows you to see the quality of Cobra generators firsthand. Our trained sales staff can provide expert advice to ensure you choose the right model, while our workshop is staffed by trained mechanics ready to handle servicing and support. For local customers, this generator includes a complimentary Pre-Delivery Inspection (PDI), local delivery, and a full handover demonstration to ensure you can use it safely and confidently from day one.
Our team is here to help. Contact us today for expert advice.
Technical Specification
| Engine | Cobra |
| Displacement | 79cc |
| Engine Type | 4-Stroke / Single Cylinder |
| Rated AC Output | 1.6kW |
| Max Output | 2.0kW |
| Start Method | Recoil |
| Run Time | Up to 6hrs |
| Rated Speed | 4500rpm |
| Oil Capacity | 410ml |
| Noise Level @ 7m | 61db |
| Fuel Tank Capacity | 4.2L |
| Dimensions | L 507mm x W 286mm x H 451mm |
| Weight | 20.8kg |
| Domestic Warranty | 2 Years |
Why buy from Sims Garden Machinery?
Authorised main dealer
We are authorised dealers for leading brands, meaning genuine parts, manufacturer-approved training, and warranty support you can rely on.
Real people, real support
No call centres. No ticket systems. Just a knowledgeable local team you can speak to when you need help.
Expert advice — not pushy sales
Our team are trained mechanics and product specialists, so you get honest, practical advice based on how you’ll actually use the machine.
Established, independent family business
We’re a long-standing independent dealer with deep roots in the local area — built on reputation, repeat customers, and word of mouth.
Frequently Asked Questions
What is an inverter generator and why is it important?
An inverter generator produces a ‘pure sine wave’ AC output, which is a stable and clean form of electricity, similar to what you get from your home sockets. This is crucial for safely powering modern, sensitive electronics like laptops, smartphones, and TVs, which can be damaged by the unstable power from a conventional generator.
What kind of equipment can the Cobra IG20SI power?
With a rated output of 1.6kW and a max of 2.0kW, the IG20SI is perfect for camping, caravanning, outdoor events, or as a home backup. It can comfortably run items such as lights, laptops, small power tools, and portable fridges. Always check the power requirements of your devices to avoid overloading the generator.
How noisy is the Cobra IG20SI in use?
The IG20SI has a noise rating of just 61 decibels (dB) at a distance of 7 metres. This is roughly equivalent to the sound of a normal conversation, making it relatively quiet and suitable for use in campsites or residential areas where noise levels are a concern.
Does the generator come ready to use upon delivery?
For local customers choosing our delivery service, Sims Garden Machinery provides a full Pre-Delivery Inspection (PDI), adds the correct oil, and provides a handover. For national deliveries, the generator is shipped in its original packaging for safety. You will need to add the correct type and amount of engine oil and fresh unleaded petrol before the first start. Full instructions are provided.
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