Transformer

Transformer 400W

Model: MJ-TRANSFORMER-400W

Transformer 400W - Transformer series product image
The Transformer 400W solar flood light (model MJ-Transformer-400W) combines a Grade A LiFePO4 30Ah battery, a 5V/40W monocrystalline solar panel, and 324 pieces of 2835 LED chips to deliver 2320 lumens over a 300 square meter illumination area, making it suitable for medium commercial parking lots, industrial perimeters, construction compounds, sports warm-up areas, and large residential properties. The 365 by 295 by 50 millimeter slim housing uses smart light control for automatic dusk-to-dawn operation and includes a remote for brightness and timing adjustment, while the thickened cable with an XT60 connector guarantees a robust weatherproof link between the light and the solar panel. The system runs for up to 18 hours on a full charge, and the Grade A LiFePO4 battery is rated for 2000 cycles with a 2-year warranty from CMJ Solar. The package contains a waterproof cable, U-bracket, remote, and mounting hardware. For distributors serving contractors and commercial project buyers, the 400W Transformer provides high lumen output in a slim, modern form factor at a wholesale price point. CMJ Solar offers OEM labeling, ODM engineering, and factory-direct container shipping from Jiangmen, Guangdong. Inquire at cmjsolar.com.

Product Overview

Technical Specifications

Battery
Grade A LiFePO4 30Ah
Cycle Life
2000 cycles
Solar Panel
Grade A Monocrystalline 5V/40W(480*400mm)
LED Chips
324 pcs 2835 LED chips
Body Dimensions
365*295*50mm
Discharge Time
18 hours
Illumination Area
300 sqm
Functions
Smart light control+remote control
Package Contents
Waterproof cable/U-bracket/remote control/screws
Cable
Thickened cable with XT60 connector
Luminous Output
2320lm

Key Advantages

  • LiFePO4 battery with 2000+ cycle life
  • Solar-powered, no grid electricity needed
  • IP65 weatherproof rating for outdoor use
  • Easy installation, minimal maintenance
  • 2-year warranty on lighting products
  • OEM/ODM customization available

Applications

Outdoor Lighting
Street Illumination
Garden & Landscape
Security Lighting
Commercial Projects
Remote Area Lighting

Shipping & Warranty

Worldwide Shipping

We ship globally via sea freight and express courier. FOB Shenzhen or EXW Jiangmen terms available. Standard production lead time is 7-15 days depending on order volume.

Warranty & Support

2-year warranty on solar lighting products. LiFePO4 batteries rated for 2000+ cycles. Technical support and spare parts available throughout the warranty period.

Frequently Asked Questions

What warranty do your solar lights come with?

The Transformer 400W comes with a 2-year warranty covering manufacturing defects, the LiFePO4 battery, LED module, and solar panel. Our LiFePO4 batteries are rated for 2,000+ charge cycles, providing 5+ years of expected service life under normal operating conditions. Technical support and spare parts are available throughout the warranty period.

What is the MOQ for solar lights?

The MOQ is typically 20 units per model for standard products. Sample orders of 1 unit are available for quality evaluation. For OEM/ODM custom packaging, private labeling, or custom color temperatures, the MOQ is 500 units. Contact us for volume pricing and lead times.

How bright is the Transformer 400W and what area does it cover?

The Transformer 400W produces 2,320 lumens of light output and covers approximately 300 sqm. For reference, this level of brightness is suitable for large areas such as parking lots, roadways, and commercial perimeters. The recommended mounting height varies by application for optimal light distribution.

How many rainy or cloudy days can the light operate without sunlight?

The Transformer 400W is equipped with Grade A LiFePO4 30Ah and is designed to operate for 18 hours on a full charge. The LiFePO4 battery chemistry provides stable discharge performance even in low temperatures. In regions with extended periods of overcast weather, the light automatically adjusts brightness via the intelligent controller to conserve battery while maintaining basic illumination.

Is the Transformer 400W waterproof and suitable for outdoor use?

Yes. The Transformer 400W carries an IP65 rating, meaning it is completely dust-tight and protected against water jets from any direction. This makes it suitable for year-round outdoor use in rain, snow, and dusty environments. The housing is constructed from corrosion-resistant materials to withstand UV exposure and extreme temperatures. We do not recommend submerging the fixture, as IP65 is not an immersion rating.

How long does it take to fully charge the battery?

Under standard sunlight conditions (1000W/m2 irradiance), the Grade A Monocrystalline 5V/40W(480*400mm) fully charges the battery in approximately 6-8 hours. The actual charging time varies based on geographic location, season, panel tilt angle, and weather conditions. The MPPT or smart charge controller maximizes energy harvest even in partial cloud cover.

Request a Quote

Get pricing and specifications for this product.