Why is the charging time increased when I used the foldable solar charger behind windows?

Some windows might have been tinted with solar film that black infrared/UV light. This will reduce the solar cell efficiency, hence increased the charging time.

Can I charge my devices in Cloudy day?

Yes, it is ok to charging devices in cloudy day. But the charging efficiency will be lower down .and the charging time will be prolonged.

Can I charge my devices in home lighting?

No, The solar foldable charger can not charging devices under home lighting.

Solar Power Home LED Bulb Hang Tube with USB Charger

Name: Solar Power Home LED Bulb Hang Tube with USB Charger
Brand: Shenzhen Just-Solar Co., Ltd.
SKU: 1987851862

Guangdong, ChinaShenzhen Just-Solar Co., Ltd.

US$5.80

1-999 Pieces

US$5.50

1,000-4,999 Pieces

US$5.40

5,000-9,999 Pieces

US$5.30

10,000-49,999 Pieces

US$4.90

50,000+ Pieces

Sample price:US$5.00/piece.Request sample

Product profile

Customization

Available

Crust Color

Colors Are Optional

Housing Material

ABS

Model NO.

JT-S01B16-4.4AD-1

Light Range

>30m

Lighting Bulbs & Tube

LED

Purpose

Camping

Source Color

White or Yellow

Switch Type

Push-button switch

Solar Power

5V 600mA

Charge Method

DC(Solar) or AC 110-260V

LED

7PCS, 0.5W, 56lm, 6500K

Material

ABS Case & PC Cover and Zinc Plated Steel Hook

Lithium Battery

3.7V/4400mAh

Lighting Time

8-24 Hours in a Fully Charge

Product Color

Green, Yellow, Blue, Red

Product Size

100*100*165 mm

Weight

450g

Accessories

USB Cable or AC Adaptor

Applicable Places

Everyday Carry

Runtime/working time

<10h

Battery Type

Rechargeable Battery

Customized

Certification

CE, RoHS

Voltage

Transport Package

Color Box

Specification

40pcs/carton

Trademark

JUST or OEM

Origin

Shenzhen

HS Code

851310900

Production Capacity

10000PCS/Month

Key features

Dual Power Supply: Charges via solar panel or USB/AC adapter for flexible use anywhere.

Long Battery Life: 4000mAh lithium battery provides 8-24 hours of lighting on a full charge.

Customizable Options: Colors (Green, Yellow, Blue, Red) and logos are fully customizable for OEM orders.

Portable Design: Compact size (100*100*165 mm) and lightweight (450g) ideal for camping and EDC.

USB Charging Port: Built-in USB cable allows charging mobile phones and other 5V devices on the go.

Certified Quality: Products hold CE and RoHS certifications ensuring safety and environmental compliance.

Solar Warranty: Solar panel comes with a 5-year warranty for long-term reliability.

Remote Control Option: Available models include remote controllers with 0-8m control distance for convenience.

Company profile

Shenzhen Just-Solar Co., Ltd.

Guangdong, China

Business Type: Manufacturer/FactoryExport Year: 2004-05-05Nearest Port: SHEN ZHENAverage Response Time: ≤9.63hTerms of Payment: LC, T/T, PayPal, etc.International Commercial Terms(Incoterms): FOB, CFR, CIF, FAS, DDP, FCA, EXW

AI-Powered supplier vetting

SummaryShenzhen Just-Solar Co., Ltd. is identified as a China-based manufacturer/factory operating in Guangdong, with separate production entities described for domestic and overseas business. The supplier reports multiple management-system certifications, 50 quality-control staff, more than 10 production lines, extensive solar-product output, export activity since 2004, and sales coverage across multiple global regions. It states that it provides product design, R&D, manufacturing, shipment arrangement, warranties, after-sales service, and market suggestions. The available information supports strengths in manufacturing scale, export experience, product development, customization, and stated service capabilities. However, financial credibility cannot be assessed because relevant financial information is excluded, and the representative-title record is invalid or unusable.

Supplier typeThe supplier is explicitly classified as a Manufacturer/Factory, with production locations in Shenzhen, Guangdong, China. Its descriptions identify separate production entities for domestic and overseas business, supporting direct manufacturing involvement rather than a purely trading profile.

CertificationsThe supplier lists BSCI, ISO 9000, ISO 9001, ISO 14001, ISO 14000, HSE, GMP, EICC, and QC 080000 as supplier-management-system certifications. The slice does not provide certificate numbers, validity dates, issuing bodies, or scopes, so the assessment is based on the stated holdings only.

After-Sales capabilityThe supplier explicitly states that it provides a warranty period for each product, after-sale service, and reasonable suggestions for solar products and markets. It also describes support across the full shipment process, indicating a stated service capability beyond production.

R&D capabilityThe supplier states that it designs, researches, develops, and manufactures solar products according to customer requirements, and reports total R&D-engineer experience of 31–40 years. These statements support product-development capability, although they do not quantify patents, laboratories, or new-product launches.

Production capacityThe supplier is identified as a factory and reports more than 10 production lines, 50 quality-control staff, and substantial stated output for solar systems, panels, chargers, and lights. It also lists a broad solar-product portfolio and export coverage across multiple regions, supporting significant production breadth and capacity.

Customization capabilityThe supplier explicitly states that it designs, researches, develops, and manufactures solar products according to customer requirements and supplies products in customers' quality classes. This directly supports customization in product design and quality specifications.

Client casesThe supplier lists Shell, Geodrill, Newmont, Tullow, and Heineken as main customers. These named customer references provide explicit evidence of customer cases, although the slices do not include project details, transaction scope, or verification documentation.

Product Q&A

Q:How to use the product?

1. Open the foldable solar charger and spread them to direct sunshine. 2. Connect foldable solar charger with mobile phone or power bank etc. through the cable, The folding solar charger will be charging devices automatically.

Q:Is this product waterproof?

The folding solar charger is weather resistant which means it will resist the occasional rain or snowed, it is not design for immersion in water.

Q:What's devices can charged with this solar charger?

The foldable solar panel output is 5V. So it is can charge Cell phone, MP3 players, Tablets, Some of Digital Cameras, etc. other's 5V device.

Q:How long does it take to fully charge battery pack or mobile phone from empty using ?

The charging time will be difference based on foldable solar charger power, Sunshine and power bank or mobile phone capacity etc. Generally speaking, for 13W solar charger, under clear sunny days, charging 6 time is around 2 -3 hours, the charging time similar to AC charger.

Q:How long can I get best performance from the foldable solar panel?

You should ensure the solar charger is outside in direct sunlight and that the solar panel is in no way shaded. For best performance, the solar panel should be perpendicular to the sun.