Dismantling: Is the Philips Sirius Street Light Module cheap? Okay?

First, the appearance
1 Sirius street light module appearance
side view
2 Sirius Street Light Module3 Sirius Street Light Module
Viewed from the outside, the overall shape is beautiful, and the overall processing is carried out by a sheet metal bending process, and the surface is oxidized. The surface treatment details are good and the feel is good. Belong to seeing, you know that it is a high-end product.
Second, the lighting effect
A light is good, in the end it is still necessary to see the light effect.
4 Sirius street light module lighting effect
From the spotlight, the light exit angle is large and the light intensity is evenly distributed.
5 Sirius Street Light Module Effect
Sure enough, Sirius, this effect is quite good.
Third, dismantling
Oh, a good lamp has been removed by me (in fact, I refused inside).
6 Sirius Street Light Module Dismantling
Seeing these widgets, I found the structure to be quite simple.
Fourth, the structure
This shell is very characteristic and is formed entirely by sheet metal stamping. There are many screw posts and bolts that are integral with the shell.
7 Sirius Street Light Module Structure8 Sirius street light structure
It’s really not easy to do so flat and the rules are worthy of praise.
Five, lens
Optics is an LED pistol that allows light to point to where to play. Let's look at a super pistol.
9 Sirius Street Light Module Lens
Crystal clear and exudes a radiant glow? Do you have?
This module uses a glass lens as an optical processing device.
Advantages of using a glass lens:
1. Glass is an inorganic material that will not cause yellowing, cracking, hardening, etc. under long-term outdoor environment and high-intensity illumination, resulting in a decrease in light transmittance.
2. The glass lens has good air tightness and can well protect the intrusion of water vapor.
The cost is also high!
10 Sirius Street Light Module Glass
This is the lens cover, do not underestimate the black part above. There are two fast black silicone pads on the contact surface of the cover plate and the lens. This is to better seal the lens while avoiding the metal part of the cover plate from scratching the lens. The black silicone pad plays a good buffering role. It is not necessary to increase the strength of the screw.
Six, the light source
Let’s look at the light board first.
12 Sirius Street Light Module Light Source
PCB: PCB with 1.6mm thickness, high line accuracy. The surface silk screen information is complete. The arrangement of the lamp bead is more conducive to the concentrated output of light, but at the same time it will cause the heat to collect and not easily dissipate. The heat of the LED can be better reduced by the PCB with higher thermal conductivity.
There are also 9 chip capacitors above the LEDs, possibly to protect the LEDs from power pulses.
Seven, lamp bead dismantling
13 Sirius street light module lamp bead dismantling
The 3030 uses an EMC bracket. After disassembly, it found two LED chips in series.
14 Sirius street light module lamp bead internal structure
The purpose of this picture is to let everyone see the little one above, it is gold! !
This lamp is housed in a gold wire package.
Whether the lamp bead is good or not depends on the test data and spectrum.
15 Sirius Street Light Module Lamp Bead Spectrum16 Sirius Street Light Module Lamp Bead Spectrum Data
From a spectral point of view, there are not many novelties. The test data shows that this lamp is still very good. At 300 mA, there is still 100 lm/W of light, and Ra and R9 are very high.
Eight, the shortcomings
17 Sirius Street Light Module Disadvantages
In the process of dismantling, the waterproof joint wire was rotated several times, and as a result, the copper foil of the pad was peeled off.
Recommendation: Increase the copper foil at the pad to increase the adhesion of the copper foil. Or, use the terminal to connect.
18 Sirius Street Light Module Thermal Adhesive20 Sirius Street Light Module Thermal Paste
After disassembling the lamp board, it was found that the back of the lamp board was coated with thermal grease . After careful observation, it was found that:
1. The thermal grease is not uniformly coated.
2. The thickness of the coating is too thick.
3. There are holes and hardening.
For the coating of thermal grease, it is only necessary to apply a uniform thin layer, mainly to eliminate the direct air of the two metals. Because the thermal conductivity of the thermal grease itself is low, it is not too thick to coat. An increase in thickness increases the thermal resistance.
Nine, guess
The Polaris module has an excellent design and a novel processing technique. There is no longer a need for die-casting and multi-fin type heat-dissipating housings to better reduce the cost of street light materials. Multi-power, multi-shaped street lights can be realized through modular combination, which increases the variety of street lights and meets various design requirements.
In the production process control, welding, coating thermal grease and according to there is room for improvement. There is a bold assumption that the design is done by Philips and the production is done by the OEM factory.

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