6volt solar motion light

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http://forum.allaboutcircuits.com – HI, i have a solar powered motion light designed for landscape lighting. Its made by Cooper Lighting. Model: MSL180w. It uses a 6V 15W g4 bi pin bulb that needs to be replaced. The bulb got shattered one day so i decided i want to replace it with a new one. After going to radio shack with no luck, i found some on ebay and purchased them. However the ones i purchased are 6V 20W bulbs. When i install the bulb and turn it on, the relay buzzes. Which im sure is due to the lack of amperage. So to test my theory out, i inserted a 12V 5W bulb and turned it on, although it was very dim, it still (Embedded)