... low light, strobe, SOS Standard Configuration lamp holder, batteries, charger, fixed support, hexagonal head tool, 5V USB adapter, triangle ... . Standard Configuration: 1. lamp holder 2. batteries 3. charger 4. fixed support 5. hexagonal head tool 6. 5V ... has to prevent charging, short circuit protection function.Intelligent charging: charger adopts chip controlled charging with a constant current, ...