| 摘要 |
Zero Maintenance Solar Powered Street Sign-A lighted corner street sign with: solar panel film, ultracapacitors and LEDs whereas the sign does not require maintenance for ten years. Invention provides all features but does not use batteries, switches, photoelectric sensors, resistors, etc. Eliminating the use of conventional battery technology is exploited in many ways. Ultracapacitors provide new advantages. A case made of durable materials configured to a sign shape and a specific depth for one or many solar panels, in multiple pieces to allow assembly of all electronics inside and permanently sealed in a manner to prohibit access to components inside held safe from weather, animals, vandals etc. With only three pieces, the invention easily provides three corner street sign configurations for when one, two or three names are required. Without human intervention required it can be reasonably distributed in large numbers or in remote areas or both.
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