I have a woods digital heavy duty timer model 50015 I used for aquairium lights all together give me about 140 watts this is the second one I bought, after a couple months the digital display goes really light on me and stops working, can't reset it don't work and can not reprogram it, nothing works on it anymore, they both did the same thing why?

Poor quality product made in China.

Keep your receipts and return the defective units for credit, and find a better quality unit.