The Indian company hopes its products will replace the kerosene lamps which are dominant light source for more than a billion people around the world lacking reliable access to an electrical grid.
Greenlight said the new investment will be used to expand its operation within India, grow its global partnerships and extend its product innovation.
Bamboo investment manager Keith Allman will join the Greenlight board of directors as part of the deal alongside the company founders and fellow investor PK Sinha.
Allman said, “Bamboo Finance has a great interest in companies providing underserved communities access to energy.
“With our prior experience in investing in rural electrification companies, we found that Greenlight Planet developed a remarkable business model, which entails the production of high quality products as well as a unique and scalable distribution method to maximize market penetration.
“Moreover, management spends a significant amount of time in the field to better understand the needs of their clients and transforms that understanding into innovative products.”
Sinha, who grew up using kerosene lamps in rural Bihar, said he hoped Greenlight reached its target of supplying six million households by 2016.
Bamboo Finance manages $250m of investments and specialises in financing global entrepreneurs.
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