... 2) lithium battery 2200MAH 3) Charging T: 4-5H, Emergency T: 6H 4) CE/RoHS/PSE CE/RoHS/PSE 32 ... ---32~33pcs5. Battery---Lithium battery 6. Charging Time---4~5H 7. Lumen---200~260lm8. Life Span---40000H9 ... of electricity, it can keep lighting up about 4-5 hours) c.40pcs LEDs, 240-280LM, ... acceptable (3) Assistant on artwork development is acceptable (4) OEM service provided,your design and logo are welcome ...