New IP67 3W 5W COB Waterproof LED Underground Light Outdoor

It is generally believed that the electric light bulb was invented by the American Thomas Alva Edison. But if you do serious research, another American, Heinrich Go, invented the same principle and material and reliable light bulb decades before Edison, and many others before Edison also invented the light bulb. made many contributions. In 1801, British chemist Davy energized platinum wire to emit light. He also invented the electric candle in 1810, using an electric arc between two carbon rods for lighting. In 1854, Henri Goebbels used a carbonized bamboo thread, which was energized and glowed under a vacuum glass bottle. His invention today appears to be the first practical incandescent lamp. The light bulb he tested at that time could last for 400 hours, but he did not apply for a design patent in time. In 1850, the Englishman Joseph Wilson Swan began to study the electric light. In 1878, he obtained a British patent for a light bulb powered by carbon filaments in a vacuum, and began to establish a company in the United Kingdom to install electric lights in each home.

Key Features

ItemType：LEDBulbs
Certification：CQC
Certification：CCC
AverageLife(hrs)：50000
LedBulbType：SpotlightBulb
Voltage：90-260V
LEDChipBrand：Epistar
BrandName：HOSDALY
LuminousFlux：500-999Lumens
PowerTolerance：1%
LEDChipModel：1WHighPower
ColorTemperature：WarmWhite(2700-3500K)
Occasion：SQUARE
BeamAngle(°)：60°
Shape：Bar
BaseType：Wire
Length：85mm

What's In the Box

1*product