product recommendation - Advice for Lighting in a Sukkah

I'm seeking advice for safe, cost-effective lighting inside a Sukkah.

My goals are:

1. 
   

   Minimize risk of fire. Even florescent lights can get hot enough to spark dry kindling in certain circumstances.

   
   


2. 
   

   Minimize energy consumption. Should I go with solar? Outdoor timers? See #3 below.

   
   



3. 
   

   Minimize up-front costs. Timers or solar-powered LEDs seem like a great idea for the first two, but so far I've seen some prohibitively expensive and complicated solutions involving retrofitting florescent-tube fixtures to operate LED tubes.

   
   


4. 
   

   Simple installation - see #3 above.

   
   


5. 
   

   Have a Sukkah that is lit as brightly as my dining room.

   
   


6. 
   
   

   To have a Sukkah in which I can entertain guests who will want to hang out in the Sukkah long after the meal has ended.