Comparing Linear LED High Bay with Round LED High Bay

Traditionally, Metal Halide lamps (one of the HID family types) were constructed round in shape because the bulb is rounded. It was not possible to have the HID lamps made rectangular like the fluorescent lamps.
When the first generation LED High Bay lights were built, it modeled after the Metal Halide lamp and kept the round shape. The shape was influenced by the single or multiple high wattage chips used at that time. Both this is high wattage chips LED High Bay lights and the Metal Halide lamps uses reflector to divert the light down.
Subsequent technologies advancement allows the use of higher multiple of lower wattage chips for better heat dissipation. At that juncture, the manufacturer had the choice to place these low power wattage chips in either a linear array or keep them in circular layout same as the first generation of high wattage chips LED High Bay. The One-to-One Retrofit market which kept the spacing between the lights remain unchanged for ease of conversion has inevitably led to the high use of round LED high bay in this segment.
When the first generation LED High Bay lights were built, it modeled after the Metal Halide lamp and kept the round shape. The shape was influenced by the single or multiple high wattage chips used at that time. Both this is high wattage chips LED High Bay lights and the Metal Halide lamps uses reflector to divert the light down.
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