Gako aquarium lamps for Eight methods for quality evaluation of LED lamp beads

Gako aquarium lamps for Eight methods for quality evaluation of LED lamp beads

1. Difference of chip radiation power
The higher the radiation power, the brighter the lamp beads.
D24 - radiation power: 26-28mw
D25 - radiation power: 28-30mw
D26 - radiation power: 30-33mw
D27 - radiation power: 33-36mw

2. Difference of lamp bead support materials
At present, there are aluminum brackets, iron brackets, brass brackets and red copper brackets in the market. Aluminum bracket is the cheapest, and copper bracket is the most expensive, with a price difference of more than ten times. Even if it is a copper bracket, the silver plating price can be high or low. The market generally calls it a good bracket, most of which are made of brass and silver plating.
3. Difference in chip size
The chip size is usually in mil. In general, the larger the chip, the higher the brightness.
4. Difference of welding wire materials
The chip and the bracket are connected by gold wire welding. At present, there are two kinds of alloy wire and pure gold wire commonly used in the market. Pure gold wire is better
5. Difference between phosphors
White light lamp beads are made of blue chips and red and yellow phosphors, which are mainly composed of aluminates and silicates.
The performance of aluminate is better than that of silicate, and YAG is the most representative aluminate. YAG has stable performance and low light attenuation.
Silicate has poor chemical stability, but its brightness is higher than that of YAG.

6. Difference between glues

The phosphor is mixed with the glue and then placed on the chip. The quality of the glue directly affects the light decay of the LED light source