d.Light D180 is a plug and play solar home system with Pay-As-You-Go functionality that includes a solar panel, three lights each with a switch, a battery pack with mobile charging, a portable torch and an FM radio.
The d.Light D180 is a Solar Home System that provides home lighting and charging capabilities through an energy system composed of a solar panel, a lithium iron phosphate battery, two LED bulbs, and a tube light each with wall switches, a portable torch, and an FM radio. The device comes with USB output for the universal charging of mobile phones and other electronic devices. Designed and manufactured by d.Light, and with a plug-and-play installation, it has Pay-As-You-Go functionality and the battery pack has an LCD screen to indicate the state of charge.
d.Light markets its products through the organization’s four hubs in Africa, China, South Asia, and the United States to consumers in over 65 countries.
The product is sold by online retailers and locally through d.Light’s 25,000 retail outlets across 70 countries worldwide.
151.71 USD (560,000 UGX)Converted on July 13th 2020
The product competes with kerosene lamps and solar lanterns for household and business lighting, though these typically cannot provide charging capabilities.
The primary competitors for this product are other solar home systems such as the Barefoot Connect 620 from Barefoot Power, the Azuri 15W Quad 600 Solar Home System from Azuri Technologies Ltd., and the Sun King Home 40Z from Greenlight Planet.
A wide variety of Solar Home Systems are detailed in the E4C solutions library and a complete list of Solar Home Systems certified by Lighting Global can be found on their website.
Goal 7: Affordable and clean energy
The product is mass-produced in China.
Users purchase the d.Light D180 Solar Home System directly from one of d.Light’s partners with 25,000 retail outlets across 70 countries worldwide or online.
No data is available on distributions of the D180.
Beyond the D180, d.Light has sold over 20 million solar lights and power products in over 65 countries through the four centers in Africa, China, South Asia, and the United States, based on calculations done using d.light’s developing world sales and United Nations and International Finance Corporation research.
Number and type of power outputs
Number and type of light points
Manufacturer-specified lumen-hours per solar day
Peak power rating of the solar panel in standardized sunlight conditions, provided by the manufacturer
Manufacturer-specified battery capacity
Manufacturer-specified battery voltage
Type of battery used
Can the user easily replace the battery if needed?
Can this system be monitored remotely?
Type of user payment structure
Does this system require mobile connectivity (either for payments or to function)?
The d.Light D180 is comprised of a 12 Wp Polycrystalline silicon solar panel, a 10,000 mAh, 3.2 V Lithium iron phosphate battery and a solar controller, 2 LED bulbs and 1 LED tube light (each with wall switches), and a USB port for phone charging.
Also included are a rechargeable portable torch (with 2000 mAh, 3.7 V battery), a rechargeable solar FM radio (600 mAh, 3.7 V battery), and a universal USB adaptor for mobile phone charging.
The individual lamps each emit 120 lm of white light in wide distribution on their high brightness setting and the torch emits 75 lm of white light on its high brightness setting.
The battery and solar controller unit shows the credit remaining based on current Pay-as-you-go payments and current battery levels on an LCD screen.
Additional details can be found in Lighting Global’s Specifications Book from their testing of the D1XX Family.
Products within the 2 year warranty period (from the date of purchase) can be returned to the retailer at a user’s point of purchase for replacement free of charge. Beyond that, d.Light provides customer support (contact details available here).
Except for the FM radio and torch being covered by a 1-year warranty, the product has a 2-year warranty covering manufacturing defects.
D.Light specify that the D180 is capable of “bright lighting in several rooms at once in homes and businesses” and “charging mobile phones and other small, USB-powered devices”. They also expect users to be able to “us[e] the FM radio to stay up-to-date on important news” and use the torch as portable lighting inside and outside. They also intend for the users to be able to upgrade their D180 with additional lamps. The product page described that the battery should last “Up to 12 hours of light per full charge” and that it should emit light “20x brighter than kerosene”.
Lighting Global confirmed that the d.Light D180 complies (verification document) with the Lighting Global Quality Standards by testing according to the Quality Test Method given in edition 3 of IEC/TS 62257-9-5. The results can be found here and certification is valid until August 31, 2021.
The testing categories (all passed) are Truth In Advertising; Lumen Maintenance; Circuit and Overload Protection; AC-DC Charger Safety; Wiring and Connector Safety; Hazardous Substances Ban; Battery Protection; Battery Durability; PV Overvoltage Protection; Miswiring Protection; Physical Ingress Protection; Water Ingress Protection; Drop Test; Soldering and Electronics Workmanship; Mechanical Durability; Cable Specifications; User Manual; Component Specification and Replacement; Minimum Warranty Terms; Performance Reporting.
This Solar Home System is a plug and play device, however, electrical installation and control guidelines provided by d.Light must be followed to avoid electrical shocks.
d.Light commercializes multiple solar products from solar lanterns and solar home systems to solar appliances.
2017, Welfare impacts of an entry-level solar home system in Uganda. Journal of Development Effectiveness, 9(2), pp. 277-294.
Esper, H., London, T. and Kanchwala, Y., 2013, Access to clean lighting and its impact on children: An exploration of solaraid’s sunnymoney. Child Impact Case Study No. 4, William Davidson Institute, Ann Arbor, Michigan.
IDinsight, 2015, d.light Solar Home System Impact Evaluation. IDinsight Report.
Institute of Developing Economies, 2015, Impacts of Solar Lanterns in Geographically Challenged Locations: Experimental Evidence from Bangladesh.
International Rescue Committee, 2014, “Lighting the way: The role of handheld solar lamps in improving women’s and girl’s perceptions of safety in two camps for internally displaced people in Haiti.
Lemaire, X., 2018, Solar home systems and solar lanterns in rural areas of the Global South: What impact?, WIREs Energy Environ, 7(5), e301.
These pieces of research are not specifically about the d.Light D180, but highlight the value solar home systems can provide in resource-constrained environments.
This product meets the Lightning Global Quality Standards for Solar Home System Kits valid until August 31, 2021. Through the same testing by Lighting Global, it was found to also comply with IEC Technical Specification 62257-9-5.
The D180 was tested using the Quality Test Method (QTM) by Lighting Global in the Shenzhen Academy of Metrology and Quality Inspection in China. This is the full test method within IEC Technical Specification 62257-9-5 used by Lighting Global to verify comprehensive product performance. Results from QTM testing determine if a product meets the Lighting Global Minimum Quality Standards and IEC Technical Specification 62257-9-5.
As part of the QTM, the d.Light D30 has passed the following tests: Truth In Advertising; Lumen Maintenance; Circuit and Overload Protection; AC-DC Charger Safety; Wiring and Connector Safety; Hazardous Substances Ban; Battery Protection; Battery Durability; PV Overvoltage Protection; Miswiring Protection; Physical Ingress Protection; Water Ingress Protection; Drop Test; Soldering and Electronics Workmanship; Mechanical Durability; Cable Specifications; User Manual; Component Specification and Replacement; Minimum Warranty Terms; Performance Reporting.
The results can be seen here.
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