I own 6 of these Candle Impressions flameless candles, I've had them 3 years and I'm still very pleased with them. After 3 years, I can still smell the vanilla very faintly. The scent never overpowered the room, even when brand-new. Each candle uses two (2) C-size batteries. The on/off switch is located on the bottom of the candle.
They flicker so intermittently that they look exactly as a real candle does; if you have several in a small grouping they are all flickering at different times and it looks very real. The only time you know they aren't real is if you look directly down into the candle.
They are stylish with candle rings or greenery wrapped around them, or even just sitting alone on a shelf.
They came in very handy last year during an overnight power outage. I had 4 of them in my living room, 1 in the bathroom, and 1 candle in my bedroom and these gave off enough light that I could see my way around.
Since I have cats, this is now the only candle I will have in my home. My neighbor's home recently caught fire when she left an unattended real candle in the living room and one of her dogs knocked it over. Sadly, one of her 3 dogs died in the blaze. I simply refuse to take the chance with my cats, solely to have the ambiance of REAL candlelight.