Hi I purchased 2 replacement driver boards from deal extreme being http://dx.com/p/5v-8-4v-2000ma-3-mode-led-driver-board-162787 and http://dx.com/p/21-65mm-8-4v-1500ma-circuit-board-for-bike-light-sku-94182-82510-82734-more-166085. These driver boards were same physical size, electrical specs in terms of battery and output and were also inclusive of a clicky switch for the power on off as my old driver board. However they have different spots to connect the battery leads and am not sure where to put positive and negative. I have looked on internet forums, you tube video to no avail and have spent hours holding batteryleads onto different connection points which turn on light but do not let me go through hi low or flash or off. Has any one used these and can advise. Many thanks