Agriculture
December 17, 2024
Sun King Eco
Read SolutionImplemented by
Sun King
Updated on January 13, 2024
·Created on October 3, 2018
Hand-held, portable solar powered lamp.
Little Sun Original is a hand-held, portable solar lamp designed to charge during the day and be used at night. It is equipped with a dimmer to allow for users to adjust the brightness of the lamp to what you need. 5 hours of charging in the sun produces more than 50 hours of light at the dimmest setting or 4 hours of use at the brightest setting.
Target SDGs
SDG 7: Affordable and Clean Energy
Market Suggested Retail Price
$26.00
Target Users (Target Impact Group)
Household
Distributors / Implementing Organizations
Local select stores globally
Competitive Landscape
Direct competitors include Nokero N233 and Sun King Pro SK-301 Solar Lantern.
Regions
Africa
Manufacturing/Building Method
Mass produced
Intellectural Property Type
Trademark
User Provision Model
Little Suns are sold at a higher price in higher-income areas of the world while the product is sold in off-grid areas at much lower, locally affordable prices. The lamps are available in Little Sun's Online Store (US and Europe only) and in select stores in all parts of the world.
Distributions to Date Status
661,578 as of 2018
Lamp type
LED
Number of light points
1
Total light output (lumens)
Low: 2 lumens
high: 30 lumens
Multiple brightness settings (yes/no)
Yes
Light duration on single charge (hr)
Low: 50 hours
high: 4 hours
Mobile charging (yes/no)
No
Power source
Solar Panel
Battery type
Lithium Iron Phosphate
Peak power rating (Wp)
0.5 Wp
Battery capacity (kWh; mAh)
400 mAh
Battery nominal voltage (V)
3.2 V
User replaceable battery (yes/no)
No
User replaceable light (yes/no)
No
Design Specifications
Lamp dimensions: Diameter 12 cm, depth 2,9 cm.
Weight: 96 g.
Solar panel: 60 by 60 mm monocrystalline silicon, 4.4V, 0.5W.
Battery: AA LiFePO4, 3,2V rechargable battery with 400 mAh.
LED: Samsung, Colour: 4500K, slightly yellow.
Light output and duration: Charging Little Sun Original for a minimum of 5 hours in the sun gives you 4 hours bright light (25lm); or, use dimmer to get the most out of your Little Sun (up to 50 hours or more at lowest level, 2lm)
Technical Support
Available from the manufacturer.
Replacement Components
Available from the manufacturer.
Lifecycle
Battery has a lifespan of 5 years if used daily.
Manufacturer Specified Performance Parameters
Unknown
Vetted Performance Status
Lighting Global has vetted the following performance parameters; 1. Truth in Advertising 2. Lumen Maintenance 3. AC-DC Charger Safety 4. Battery Composition, Battery Protection, Battery Durability. 5. Physical Ingress Protection 6. Water Ingress Protection 7. Drop Test 8. Soldering and Electronics Workmanship 9. Mechanical Durability 10. Minimum Warranty Terms 11. Performance Reporting
Safety
Follow proper electrical installation and control guidelines
Complementary Technical Systems
None
Academic Research and References
Marc, J., Olafur, E. et al., 2015, Citing the Sun, Fashion Theory, Vol 19, 3, pp. 315-330
Natalia, S., Justyna, M. P., 2016, The Review of the Selected Challenges for an Incorporation of Daylight Assessment Methods into Urban Planning in Poland, World Multidisciplinary Civil Engineering-Architecture-Urban Planning Symposium
Compliance with regulations
Little Sun Original has complied with the Lighting Global Quality Standards, and has been tested according to the Quality Test Method stipulated in the IEC 62257 - 9 -5 Standard.
Evaluation methods
Lighting Global Quality Standards
Other Information
Read more on the Quality Test Method stipulated in the IEC 62257 - 9 -5 Standard
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