DEWALT DW089LG 12V 3 x 360 Green Beam Line Laser is great for various leveling and layout applications. This unit is used for projecting bright crossing horizontal and vertical lines. It features green beam laser technology which is four times brighter; the green laser diodes are more visible than red and allow for a greater visible range in interior applications along with better exterior visibility. This unit offers (3) 360 degree line lasers to aid in full room layout. A full-time pulse mode allows use with a detector. It also has an integrated magnetic bracket with 1/4″ and 5/8″ thread, an over-molded housing and IP65 water/debris resistance, along with a lockingpPendulum that helps t prevent damage to internal components. The 12 volt battery compatibility allow for long run times with the convenience of rechargeable power tool batteries. Includes: Blow Mold Case , Extended Ceiling Bracket , 12v Battery, Charger , 12v Green 3 x 360 Line Laser. This is a Class 2 laser product, Power output ≤ 1.5mW.