Do you have solar lights that use 3.2-volt lithium phosphate rechargeable batteries? This 2 pack of UL14500SL-2P 14500 Lithium Batteries for Solar Lighting from Ultralast is just what you need. These are only to be used in high output super bright solar lights that use 3.2 volt 600 mAh batteries. They meets or exceeds original manufacturer specifications.