Burn times vary by size and wick count: smaller tapers are around 6 hours, many multi-wick jars are listed near 32 hours, and some larger jar candles show burn times up to about 100 hours.
Flameless LED candles require batteries; listed types include 8 AA, 2 AA, 6 CR2032 lithium, and 8 AAA alkaline. Several listings note batteries are required but not included.
Most burn candles are paraffin, with at least one jar using a paraffin/soy blend. Flameless candles are made from wax or from resin/plastic, and containers shown include glass and ceramic.
LED flameless candles typically include remote controls and built-in timer functions (automatic on/off scheduling). Descriptions also highlight realistic-looking wicks and warm light for a natural appearance.
Many listings are unscented; at least one decorative jar candle is scented with wine and plum notes.