Like many of you I ordered the round white light for orientation from China....did not read the fine print when ordering that is was for the regular Phantom, and clip to fit the smaller battery. I did not want to screw around with rigging on a $160 battery...so went to an electronic store with questions....no help whatsoever... today stopped by a Radio Shack....and viola!...a tiny small 12 volt garage door battery plus a small single battery holder did the trick for about $7 bucks.....The orig Phantom was 2200 mAh so a 12 volt will work with the light...tried 9 volt without success. It is very small and light will not know the exact weight yet...my scales are to arrive today. With the Dronexpert gimbal I am getting 14.5 min flying times. I have attached a couple of photos to show type of battery and battery holder...just rigged something up fast on the Phantom 2 for now.....If I can find a tiny switch to but inline with one wire would be great....attached the battery clip with industrial velcro....so it will pop off when I change to my second battery. Hope this helps others looking for a way to use their big white light for orientation on their Phantom 2 Visions.