Supplied with 3 x AAA batteries and 2 x CR2032 batteries (for the Carabiner light), Bright 160 Lumen pen-light output COB (chip on board). 3W (160 Lumen) Pen / Worklight features a powerful magnetic base for easy attachment and a clip for belt or pocket. Measures approx. 17.5cm in length x 2.8cm width x 1.6cm in depth. Both units have their own features and uses and are great for inspection work and ideal for working in dark spaces and corners, in the garage, at home, in the car and for emergency roadside uses, camping, fishing and much more... Handy and compact 1W Carabiner Clip unit features LED COB technology with 3 Light settings including a strobe/flashing mode.