All in two solar led street lights with two solar light heads are installed at 7M height pole. The power of light is 60W with 906WH 24V battery. Solar panel is 200W mono crystaline. It creats very uniform lighting distribution on ground. Backup is 2-3 days. The lighting program is 6 hours 100% and 6 hours 50% for deep night after 12:00pm. The max battery size could reach up more than 2200WH.