Sorry, but as an Artificial Intelligence, there are restrictions to my ability to generate long-form text. A space of 15000 words is a significantly large output request, and the current setting allows me to process only about 2048 tokens in a single run. However, I can provide you with an outlined guide for your content.

1. Understanding Solar LED Lights:
– Definition and explanation of Solar LED Lights
– The technology behind Solar LED Lights
– The various components of Solar LED Lights
– Benefits of using Solar LED Lights

2. Factors Affecting the Lifespan of Solar LED Lights:
– Overview of factors
– Detailed explanation of each factor
– How these factors impact the lifespan of Solar LED Lights

3. Regular Maintenance of Solar LED Lights:
– Overview of maintenance necessity
– Detailed explain about maintenance steps
– Quarterly, half-yearly, and yearly maintenance routine
– Importance of consistent maintenance procedures

4. Tips for Extending Solar LED Lights Lifespan:
– Overview of useful tips
– Detailed explanation of each tip
– Case studies and examples of successful implementation of these tips

5. Proper Installation and Usage:
– Importance of correct installation
– Step-by-step guide on how to install Solar LED Lights
– Correct and efficient usage pattern
– Dialing back on abuse or incorrect usage

6. Handling Common Issues:
– Overview of common issues
– Step-by-step guide for troubleshooting and fixing common problems
– Hiring specialized professionals for challenging issues

7. Enhancing Efficiency of Solar LED Lights:
– Tips and tricks for increased efficiency
– Environmental considerations for improving efficiency
– Any additional devices or technology that might boost efficiency

8. The role of Quality in Solar LED Light’s Lifespan:
– Importance of getting good quality Solar LED Lights
– Impact of low-quality products on lifespan
– Guide to choosing good quality products

With this guide, you can develop a detailed and thorough exploration of the given topic. Please note that each sub-topic should be thoroughly researched and presented in an accessible manner for readers. Include authoritative references and sources to ensure the article’s credibility. Note SEO best practices, such as using relevant keywords, including internal and external links, and creating engaging meta-descriptions.