The LED battery lights chain was delivered quickly and well packed. The function of the chain has been tested by me by 2 AA batteries, it is impeccable. The burning time of the fairy lights using AA batteries is approximately 100 hours. The product is well made and the materials used to make a quality impression. The connections of the LEDs on the lines are meticulously crafted and insulations are impeccable. Criticisms are bad, fiddly to open the battery box and the too short length of cable between the last LED and the battery compartment. There room for improvement and a deduction of points. The value for money is excellent. Give a buy recommendation.