Battery life varies by model and usage. Listings mention runtimes of about 100 hours, around 200 hours, and some claim "hundreds of hours" of continuous use—check the specific product listing for exact runtime details.
Some listings state batteries are included or pre-installed, while others explicitly list batteries as not included or optional.
Listings show shell materials such as plastic or polypropylene, with finishes that include wax coatings; some premium-style tea lights use paraffin wax.
Operation methods vary: common controls include twist on/off bases, push-button switches, and simple slide on/off switches.
Most tea lights are about 1.5 inches in diameter. Heights range roughly from 0.75 inches up to about 2.3 inches, with widths generally around 1.42–1.5 inches.
Some listings state the tea lights can be used both indoors and outdoors, but at least one listing explicitly warns they are not waterproof and advises avoiding contact with water to prevent battery rust.