25. Solar-charged table lamp: an off-grid solution from Cartel

Title: How to sell table lamps in areas without a stable power grid? Kaltai's solar energy strategy
Energy Innovation:

Measurement data:
✓ 4 hours of sunlight, 30 hours of battery life
✓ -20℃ to 60℃ normal operation

Cases of cooperation with the government:
✓ Rural school lighting project in Tajikistan

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