3.5-12W 350-1300 lm LED work light: the wireless LED work light for attaches the base and a 3.5-12 W E27 LED bulb, the brightness can be adjusted by the rear button of 350-1300 lm cool white light; the colour temperature is 6500 K. It is bright enough for your daily indoor and outdoor use For 18 V battery light: the cordless LED work light is only compatible with Ma-kita 18 V max lithium battery: BL1860 BL1850 BL1840 BL1830 BL1815. etc. Battery not included and please remember to remove the battery when not in use in case of empty battery. Safe to use: Equipped work light with15 avoid overdischarge of the battery and damage to the battery Easy to install and deformable brightness: simply slide the battery hit base of the wireless work light securely to lock, turn the battery down again. The work light brightness can be deformed 350-1300LM to meet more daily use scenarios Usage time: 5A capacity battery can work for 35 hours on a full charge