Sun Block
Lights an area of 10-20-50 blocks radius the same light intensity of the sun,by the ages it fades down as a normal light.
The more power pump into it more larger area of light.
example: connect whit a shingle wire from a nuclear generator:
[ ] - SUNBLOCK gives max of 50 blocks radius of light.
(ofcoars it depends of the number of 
in the generator )
Recepy:
G G G
G 
G G G
= HV light bulb[like the luminator]
L L L 
L L L
= SUNBLOCK
G = glowstone dust
L = HV light bulb
PS: Don't be near the 
if it flashes and it kas a ledstonetorch by it.