Astro Pneumatic Tool 12SL 400LM Ultra Slim Rechargeable Inspection Light w/Magnet & Bracket High performance 12SL (v2) now outputs 400 lumens from 12 XL SMD LEDs while maintaining the same  thick nearly indestructible design Version 2 12SL now also includes powerful neodymium magnet with adjustable position bracket  or thread magnet direction into lights brass threaded location VLight switch now found on the back of light for convenience: half power, full power, hold to shut off The 3.7v 2400mAH Li-Polymer rechargeable battery has a 1000x life cycle, and comes with an integrated PCM to prevent over charging The charger features current protection, input reversal protection, over charge protection, and temperature control protection