What is an electronic cigarette? An electronic cigarette or e-cigarette is an electronic device where nicotine liquid is being converted into water vapour when used. It contains a battery, which has an indicator light on one side, an atomizer which converts e-liquid into smoke, and a cartridge which is attached to the atomizer and contains the e-liquid. Electronic cigarettes are now being substituted for tobacco and regular cigarettes because of its accompanying benefits to the health of smokers. There are already a lot of prevailing electronic cigarettes in the market now. Among known brands with the latest customer reviews and ratings are BluSmoke, V2 Cigs, One80 Cigs, Smoke Tip, Green Smoke, South Beach Smoke, Luci E-Cig, Blu Cigs, Premium E-Cig, and The Safe Cig.