https://dimplex.ru/catalog/ochag-opti-v/ 

Dimplex Opti-V is an innovative development by Glen Dimplex. The Opti-V electric fireplace features an improved operating principle and additional visual effects that can only be seen in the Opti-V model.

Only this model integrates the unique effect of real sparks that fly from burning logs and go out in the air. The "spark effect" is based on a radically new technical solution, implemented by installing an LED surface that transforms light into sparks.

Opti-V – realistic flame effect from Glen Dimplex! Opti-V fireplaces were originally developed for the commercial sector – bars, restaurants, hotels, as the new LED technology allows to minimize fireplace maintenance and does not require additional ventilation and chimney installation for installation fireplaces in wall niches, however, Opti-V will also look great in the interiors of country houses and spacious apartments.