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Mini Size Circular Solar Panels Poly Crystalline 3% Power Output Tolerance

Ningbo Kelan Solar Electric Co., Ltd.
Ningbo Kelan Solar Electric Co., Ltd.
City: Ningbo
Province/State: Zhejiang
Country/Region: China
Tel: 86--15088842982

Mini Size Circular Solar Panels Poly Crystalline 3% Power Output Tolerance

Brand Name : KELAN SOLAR
Model Number : KL
Certification : CE/IEC/ROSH
Place of Origin : ZHEJIANG,CHINA
MOQ : 10 PCS
Price : Negotiable
Payment Terms : LC/T/T
Supply Ability : 10000 PCS PER MONTH
Delivery Time : 5-8 WORKING DAYS
name : round solar panel
size : 291*342*18mm
solar cells : poly crystalline solar cell
max power : 80 watt
frame : no frame
application : for outside round led lamps
warranty : 10 years
life time : 25 years
colar : black/blue
certificate : CE/ROSH/IEC
Weight : 1.2kg
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5W 8W 10W 20W 30W 50W 60W round solar panel, poly and mono style for your options. special solar panel, according to customer's requirement

Where to use?

1w to 300w solar panel charge most of rechargeable batteries, like Lead-acid, NiMh, NiCd, Li-Ion, Alkaline, LiFePo4, Li-ion polymer batteries. It is widely used in popular lighting products(lawn light, garden light, decorative light, yard light, wall lamp, traffic signs and Lights, street light, advertising billboard lighting, string light, spotlight, flood light, pool light, post light, underground light, table light, torche lantern etc.); portable solar power supply products(mobile phone charger, batteries charger, solar backpack/bag, foldable solar panel charger, suitcase power unit, home power pack etc.); vehiches(golf car, boat, patrol car, yacht, RV, expedition vehicles, any other irregular surface roofs); water pumps and fountains; Homes and Buildings; security alarms, lights and CCTV; consumer electronics; toys, novelty and gift products; agriculture and water; telecommunications; marine; solar power plants; solar home system.

Features of Solar Panel:

High reliability with guaranteed +3% power output tolerance
High performance solar panel made of monocrystalline silicon solar cells with module efficiency of up to 17%
Bypass diodes to minimise power loss with shading
Textured cell surface for especially high current yields
Advanced EVA encapsulation with triple-layer back sheet, meets the most stringent safety
requirements for high-voltage operation
Sturdy, clear-anodized aluminum frame with pre-drilled holes for quick installation
Pre-wired junction box equipped with connectors,Connection cable with water-protected plug connector
Reliable bypass diodes to prevent overheating (hot spot effect) and to minimise power loss by shading
Withstands high wind-pressure and snow load, and extreme temperature variations
High conversion based on innovative photovoltaic technologies.


1. Low voltage-temperature coefficient allows higher power output at high-temperature condition.

2. High efficient, high reliable solar cells ensure our product output stability.


1. 10 years limited product warranty

2. 15 years at 90% of the minimal rated power output

3. 25 years at 80% of the minimal rated power output

We are the professional supplier for the solar panels and solar cell ,we could provide the best service for you . Maybe we have not cooperation with each other, but we could be the good friend in future.

Date Sheet of solar panel

Electrical Date



Nominal peak power(Pmax)8
Maximum Power Voltage(Vmp)18V
Maximum Power current(Imp)0.444A
Open-cicuit Voltage(Voc)21.6V
Optimized cell efficiency17%-19%


Operating temperature-40°C to +85°C
Maximum system voltage1000VDC

Temperature and Coefficients

Current temperature coefficient%/K0.06+/-0.01
Voltage temperature coefficientmV/K-(78+/-10)
Power temperature coefficient%/K-(0.5+/-0.05)

Additional Data

Number of cells and type of connection156*156
Container Loading

Guaranteed Power Output15 year:90% of its nominal power rating
25 yesr:80% of its nominal power rating
Warranty PeriodReplacement for manufacturing defects within 5 years
Cellsmonocrystalline silicon photovoltaic cell


1. All solar module produces without any aberration or bubble.
2. Back sheet is TPT&PET, and the thickness is 0.3mm.
3. The thickness of EVA is 0.4mm,better than other company use 0.3mm or 0.35mm.We use new EVA material, not the overdue, the overdue EVA will influence the performance and lifespan of solar panel.
4. New aluminum with 1.00mm thickness, high hardness, good impact resistance. Some company will use bad recycle aluminum.
5. Tempered glass with 3.2mm has advantages of high strength, impact resistance,good light transmittance.
6. The solar cells made in Taiwan, high efficiency, low attenuation,the attenuation is less than 10% within 5 years and less than 15% within 10 years.
7. The junction box has good waterproof, good anti-aging,PV wire. The PV wire is good for anti-aging and anti-corrosion, it's better than the normal wire.
8. Package by 7 layers thick carton, moisture proof and anti-cracking. Two pieces in one carton, easy to delivery.

Product picture:


> Antireflective glass
> Translucency of normal luminance is increased by 2%
> Module efficiency is increased by 2%
> Self-cleaning function
> Service life is as long as 25 years (30 years optional)

Solar Cell

> High Efficiency PV Cells
> Appearance Consistency
> Color sorting ensure consistent appearance on each module
> Anti-PID

Junction box

> Conventional standalone edition and engineering custom edition
> Quality diode ensures module running safety
> IP67 protection level
> Heat dissipation
> Long service life


anti-aging EVA, excellent weathering resistance TPT

Size and specification of round solar panel is customized

Back views of solar panel



Payment Term



30% T/T in advance, paid the balance before shipment


30% T/T in advance, paid the balance against copy of B/L

L/CL/C amount above 50,000 usd, we can accept L/C at sight
West Union

Amount lower than 5000usd

West Union
Delivery Time7~10days after receiving payment for one container

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