d.light new product range passes Lighting Global Quality tests
…warranty. The S2 is an ultra light, low cost study light with an adjustable support; the S20 is a versatile family lantern with a multiple-setting handle; the S300 features four…
Quantitative Market Assesment Results – Zambia
…used and their cost. It also includes an evaluation of modern off-grid lighting products. The report finds that candles were the most commonly used type of lighting. 79% of the…
Integrating Sphere Measurement Part III: Equipment
This Technical Note is Part III in a three-part series examining the proper maintenance and use of integrating sphere light measurement systems. This third Note focuses on low-cost equipment that…
Blog | (Em)powering Women and Their Communities: The Off-Grid Solar Service-Based Model
…unfeasible, while diesel generators emit harmful pollutants and carry high recurring fuel costs. Off-grid solar systems, on the other hand, can be deployed at relatively low-ease and low cost, even…
Lithium-ion Batteries Part II: Safety
Lithium-ion batteries are cost-effective, high capacity, and capable of long cycle life when properly used in off-grid products. They can, however, present a serious safety hazard if poorly manufactured or…
Azuri Technologies recognized for global sustainability role
…Solar light which combines lighting and mobile phone charging with a pay-as-you-go energy leasing service that enables consumers to purchase their solar lanterns at roughly their daily cost of kerosene….
Lumen Maintenance Testing of Off‐grid Lighting Products
This Technical Note covers methods for measuring lumen maintenance of LED-based off-grid lighting products, focusing on low-cost methods to evaluate a product’s ability to provide long-term lighting service.
Solid-State Lighting on a Shoestring Budget
…by 50 small businesses, careful measurements of kerosene lighting use patterns and associated costs for 23 of these businesses, and a subsequent field trial in which 14 of the 23…
Lighting Efficiency and Product Design Optimization
…design from an energy and efficiency perspective. It is intended to help manufacturers design efficient, high performance products and avoid the false choice between good performance and low product cost….
An Emerging Market for Off-Grid Solar’s Newest Frontier: PULSE
…billion. PULSE appliances will also become more accessible in the future. As the technology improves, the cost per unit of performance will go down, even as rural households will have…