Какова приблизительная рентабельность взрывозащищенных светильников

The profit margin for explosion-proof lights typically ranges between 10% and 20%.

Of course, this depends on the final selling price of the explosion-proof lights, as every product has its costs. Profits are made when the selling price exceeds these costs. However, in efforts to penetrate certain markets, selling at or below cost can sometimes lead to losses!