Specifications 1. Lamp size: 157*390mm 2. Light source type: Epistar high power 3. Light source power: 254-72W 4. Working voltage: AC220V/DC24V 5. Material: aluminum tempered glass, glue-filled and waterproof 6. Color temperature: monochrome/RGB 7. Protection class: IP65 8. Control mode: always on/internal control/DMX512 |
The necessity of LED wall washer in outdoor urban lighting, with the acceleration of the development trend of big cities, new urban lighting projects in China's provinces are in full swing. The quality of the special effects of the wall washer should be as delicate and smooth as water. So how should the quality of the wall washer be assessed? Below, I will give you a brief and detailed introduction.
PCB circuit boards: At present, there are (arranged by quality and price) FR-1 cardboard, CM-1 half glass board, FR-4 glass fiber board, solar cells, high heat transfer solar cells, Ceramic fiberboard, etc. The bad ones are non-flame-retardant cardboards, the big ones are ceramic fiberboards, and the cost-effective ones should be FR-4 glass fiberboards and solar cells.
Lenses: Lenses are divided into two categories based on raw materials: PMMC (acrylic sheet) and PC. The light transmittance of PMMC is relatively high. It can be up to 95% if done well, and 89% of PC; Therefore, the application of small output power lighting fixtures is PMMC, and the application of high power is PC. Electro-optical grade (including reflective material) PMMC and PC raw material electro-optical private mold (precision less than 0.1um) is a good choice for lenses. The difference between the actual effects of the ring ratio: the light is more detailed, and the chromaticity is higher than 10%; it is not easy to produce a central shadow spot.
Chassis: The chassis of the wall washer is all made of Lashen aluminum shell, and the better ones are treated with surface anodizing treatment. The difference is that the softened marks that are not treated cannot be washed off, and the softened marks that have been solved can be wiped off. The key to the road landscape lighting project is the specifications and model specifications of the casing, the total heat removal area, and the net weight of the heat dissipation index between the two to generate a stable and suitable heat balance point to prevent the LED lamp beads from being damaged due to continuous heating. Therefore, it is more strongly recommended that the private model products with a strong purpose in the design plan.
Vehicle wiring harness: First, the material of the vehicle wiring harness is preferably all copper wire, to prevent the use of some poor copper-clad aluminum or stainless steel low-quality vehicle wiring harness. In terms of method, the method of selecting the bottom group to exit the line is adopted to reduce the gap of the lamp arm to a larger level.
In addition, it is necessary to use waterproof quick-pull pair connectors as much as possible (the waterproof pad of the screw head is easy to fall off). If the construction site allows, the manufacturer can be required to manufacture in series.