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COB technology, or Chip on Board, is one way to integrate LEDs into light sources. In this technology, LED chips are directly mounted on the surface of a substrate (usually ceramic or metal), rather than being packaged in separate plastic housings, as is the case with SMD (Surface Mount Device) LEDs.

Benefits of COB technology include:

1. Higher power density: COB LEDs provide higher lumen density per unit area, allowing for bright and compact light sources.

2. Great thermal conductivity: COB LEDs have good thermal conductivity due to the metal or ceramic substrate, which promotes more efficient cooling and longer lifespan.

3. Improved color rendering: COB LEDs can be placed closer together, improving lighting uniformity and color rendering.

4. Space Saving: Due to their compact size, COB LEDs take up less space, which is especially important when designing devices with limited space.

COB technology has found wide application in lighting fixtures, automobile headlights, lanterns and other applications where high brightness and efficiency are required.

COB (Chip on Board) LEDs are brighter than conventional custom LEDs (SMD) due to several factors:

1. High power density: In COB LEDs, the chips are located very close to each other on the same substrate. This allows the creation of light sources with a higher luminous flux density per unit area, which makes them brighter compared to individual SMD LEDs.

2. Improved Cooling: COB LED substrates are often made of materials with good thermal conductivity, such as ceramic or metal. This provides more efficient cooling, which allows COB LEDs to operate at higher wattage without overheating, causing them to emit more light.

3. Advanced Optics: COB LEDs can use special optical systems, such as lenses or reflectors, that control the direction of the light and increase its brightness.

How many times a COB LED is brighter than a regular SMD LED depends on the specific design and wattage of the LED, but generally COB LEDs can be significantly brighter than their SMD counterparts. The efficiency of COB LEDs and their ability to produce more light per unit of power make them popular in applications where high brightness is required.

Characteristics:

Charging time: 1.5 hours
Built-in 3.7V lithium polymer battery
Charging: TYPE C charging
Working time: 3 hours (Full charge - 1.5 hours)
Luminous flux (lm) - 800 lumens.
Power consumption in modes: 100% - 6W, 60% - 4W, 30% - 2W
Battery capacity: 500 mAh
Housing material: aluminum

Ultra-Advanced, Super Powerful Miniature COB LED Flashlight: The keychain flashlight is equipped with LEDs that provide up to 800 lumens of illumination while maintaining a portable size and simple technological design.

The keychain flashlight has 3 lighting modes - COB High mode (100% brightness), COB Low mode (30% brightness), COB Strobe mode (strobe).

The durable magnetic base and rotary handle keep your hands free while working. Magnets allow you to attach the flashlight to any metal, and the 180-degree folding handle allows you to place the flashlight at different angles or hang it anywhere.

When you need to charge, just plug in the USB power source. This is a USB flashlight that has a battery and is rechargeable. After charging, it is powered by a built-in high-capacity rechargeable battery.

Best for domestic and tourist use! Portable flashlight with key ring, foldable stand, bottle opener and magnetic stand. Used for fishing, hiking and camping, operating machinery, emergency maintenance and other multi-purpose work.

What's in the package:
1 lantern
1 USB-Type-C charging cable