Sun King Eco

Target SDGs

Market Suggested Retail Price

$19.95

Target Users (Target Impact Group)

Household

Distributors / Implementing Organizations

Greenlight Planet's distribution network. Distributed in India by EssMart. Online distribution via Amazon

Competitive Landscape

Direct competitors include Firefly Mini Gen 2.5, ToughStuff Desk Lamp Kit, d.Light S20, and Sun King Pro SK-301 Solar Lantern.

Manufacturing/Building Method

Mass Produced.

Intellectural Property Type

Select Type

User Provision Model

Initially through Greenlight Planet's distribution network and eventually through their partners.

Distributions to Date Status

Unknown. (product launched in January 2015)

Design Specifications

The SunKing Eco is designed to be paid off over the course of 10 weeks using an imbedded chip in the solar lantern and mobile payments. The solar lantern has three brightness settings and can run continuously on its normal setting for 8 hours on a full charge. Dimensions: 26.16x17.78x15.24cm, 0.5443kg

Product Schematics

Technical Support

Greenlight Planet (now Sun King)

Replacement Components

Replacement batteries, as well as replacement battery specifications, are available from the product manufacturer.

Lifecycle

Warranty: 2 Years

Manufacturer Specified Performance Parameters

Targets: 25 Lumen output, 30 hours of light on one day's charge, 5 years of battery life, lightweight, high durability,

Vetted Performance Status

Results from Lighting Global Turbo (not tested on Medium or Low settings): Battery run time (8.1 hours); Run time per day of solar charging (8.1 hours); Total light output (27 lumens); Total area with illumination > 25 lux (220 m2) The Comprehensive Initiative on Technology Evaluation (CITE) at MIT evaluated personal-use solar lanterns available on the market in Uganda and published the results in January 2015. The SunKing Eco received a score of 50/100. Full findings are available in their report and as a snapshot synopsis is available in the image included here.

Safety

Unknown.

Complementary Technical Systems

Payment: Mobile phone access facilitates easier payments for product.

Academic Research and References

Compliance with regulations

In compliance with Lighting Global, Global Quality Standards: Truth in Advertising Lumen Maintenance Quality Warranty IEC 62257-9-5 ed 2.0 Polycarbonate & ABS IP64 rated

Evaluation methods

Greenlight Planet Sun King Eco was tested according to the Quality Test Method in the latest edition of IEC 62257-9-52 and met the Lighting Global Quality Standards. The Comprehensive Initiative on Technology Evaluation (CITE) at MIT evaluated personal-use solar lanterns according to comparative framework for evaluation of products, similar to the model used by the U.S. nonprofit organization Consumer Reports along the dimensions of Suitability, Scalability, and Sustainability. Students and faculty collected data on 11 solar lantern models from both field and laboratory tests, as well as through interviews, surveys, and participant observation of product users and Solar Sister distribution agents.

Other Information

None.