my boy says it does. appearently regular ballasts pulse which means more wear and tear on your lights and it is not a constant barrage of light on your tree. with the digital it is constant and less wear and tear on everything. it will only increase yield some but save you in electricity and that infernal humming from a regular ballast. they also emit no to hardly any heat. less heat means more safety and better room temperature control hope this helps. PEACE!
I'd be hesitant to buy any ballast made in China if they're built like any other piece of crap electronics equipment made in China. The quality control of Chinese made electronics tends to be very low.