Skip to product information
1 of 8

HelioGreenEnergy

300W Off-Grid Solar Power Kit

300W Off-Grid Solar Power Kit

Regular price £129.99
Regular price £0.00 Sale price £129.99
Sale Sold out
Taxes included. Shipping calculated at checkout.
Color
Quantity

A complete off-grid solar solution for sheds, cabins, caravans, and emergency backup. The 300W Off-Grid Solar Power Kit gives you everything you need to generate, store, and use clean solar energy — right out of the box. No electrician needed, no ongoing fuel costs, no noise.

Key Features

  • 300W Solar Output — High-efficiency monocrystalline panel delivers up to 300W peak power
  • Complete Kit — Everything included, ready to install straight away
  • Portable & Lightweight — Designed for easy setup and relocation
  • LiFePO4 Battery Compatible — Works seamlessly with LiFePO4 and lead-acid battery banks
  • Silent & Emission-Free — Zero noise, zero fumes, zero running costs
  • Weatherproof Panels — IP65-rated panels built to handle UK weather year-round

Technical Specifications

Specification Detail
Peak Solar Output 300W
Cell Type Monocrystalline Silicon
Cell Efficiency Up to 21%
Open Circuit Voltage (Voc) 24V
Short Circuit Current (Isc) 13.5A
Charge Controller PWM / MPPT compatible
Available Voltages 110V / 220V
Panel Dimensions Approx. 170 x 100 x 3.5 cm
Weight Approx. 18 kg (full kit)
Weatherproof Rating IP65
Battery Compatibility LiFePO4, AGM, Gel, Lead-Acid
Operating Temperature -15°C to +60°C
Warranty 12 months

Perfect For

Garden sheds, off-grid cabins, caravans, motorhomes, allotments, emergency backup

In The Box

300W solar panel, charge controller, mounting hardware, MC4 connecting cables, quick-start guide

View full details
Fast UK Delivery
Secure Payment
IP66 Weatherproof
12 Month Warranty

Frequently Asked Questions

Yes. Our monocrystalline solar panels are designed to generate power from diffuse light, not just direct sunshine. You can expect 10–80% of rated output on overcast days, and the built-in batteries store energy to keep your devices running overnight and through cloudy spells.

Our LiFePO4 batteries are rated for 2,000+ charge cycles — that's over 5 years of daily use before any noticeable degradation. Standard lithium-ion batteries typically last 300–500 cycles by comparison.

No. All our products are designed for simple DIY installation with no electrician required. Each product comes with a quick-start guide and everything you need in the box.

Each product includes everything needed to get started: the main unit, solar panel (where applicable), mounting hardware, all necessary cables, and a quick-start guide.

Yes, all products come with a 12-month warranty. If you experience any issues, contact our support team and we'll make it right.

We offer fast UK delivery on all orders. Most orders are dispatched within 1–2 business days.