 
 <prompt> Wetin dey make light transfer well? Based on di question wey dey before, write something wey get di answer. E fit be 1 - 20 sentences. Context: <response>: In recent years light emitting diodes (LEDs) dey become more efficient wey dey lead to plenty increase for the use of solid state lighting. For many situations, controlling the light wey LEDs dey emit fit dey most effective if dem use the principles of nonimaging optics. 