What is Hor?
Hor is a lighting industry abbreviation. This code indicates that a bulb must be operated in a horizontal position.
Why Does Burning Position Matter?
It is important to note the manufacturer’s indications for burning position, as every bulb is designed to operate in a set position. Improper use can cause overheating or a significantly abbreviated lifespan. That said, some lamps are designed to be Universal, which means it is safe to operate them in any position.
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