LED Tech

Cree LED Lamps we use:

Why Cree?

It’s a well known fact that Cree LED Chips have the best performances in output, lifespan, stability, etc.

How do you know your LED lights are using Cree LED chips or not?

I’m simple to recognize.

Cree's cathode design incorporates a square with parallel lines dividing the surrounded area into equal rectangles. This creates a negative "plane" instead of a point, but is also very helpful in identifying the model of LED.

You will see what the following means:
XRC / XPC - 2 rectangles
XRE / XPE - 3 rectangles (some XR-E have a 0.9x0.9mm die instead of the usual 1.0x1.0mm found in this series)
XPG - 4 rectangles
XML - 6 rectangles

Below are several ways to identify your LED chips:
  1. Use a microscope (professional one or simplified one, both are ok) to check the cathode, Cree’s silicon carbide cathode looks very special, you can easily distinguish according to above description.
  2. Cree’s Optical lens is in high pellucidity and refractivity, it’s with a very smooth and glossy surface.
  3. Cree LED chips are well-made with very fine handcrafted, tidy and clean soldering joints.

Fake Cree LED chips:
Some chips looks the similar type and shape as the Cree chips, but if you check them with a microscope you can easily find the cathode is totally different.  They are fake Cree chips.

Analysis of LED chips used for current off road LED light bars

Photo of LED Chips

LED Brand Other domestic chips Fake Cree chips Epistar, Bridgelux, etc. Genuine Cree Chips
Lifespan 15,000 hours 22,000 hours 30,000 hours 50,000 hours
Decay Rate 9% per 1,000 hours 7% per 1,000 hours 4.8% per 1,000 hours 3% per 1,000 hours
Luminous Flux 60 Lumens / Watt 60-66 Lumens / Watt 70-90 Lumens / Watt 110 Lumens / Watt
Efficacy 55LPW 60LPW 70LPW 100LPW
Cost 1/4 Cree 1/3 Cree 1/2 Cree N/A