1.2 The LED contains chips of two or three colors. Smd Led Lamp Beads,Lamp Beads 5050 Rgb,Rgb Smd Lamp Beads,Light Board Patch Led Dongguan XINYUDA Technology Co., Ltd. , https://www.gdxige.com
1.3 Colored or colorless, light-emitting diodes of the above colors can also be divided into four types: colored transparent, colorless transparent, colored scattering and colorless scattering. Scattered light emitting diode and LED can be used as indicator light.
Colloid appearance: colorless transparency, colored transparency, colored scattering, colorless scattering, etc;
Straight LED Lamp Beads are divided according to the specifications:
2.1 Shape: round lamp, square lamp, rectangular, surface light emitting tube, side tube, surface mounting microtube, etc.
2.2 Round lamps are divided into φ 2mm. φ 4.4mm. φ 5mm. φ 8mm. φ 10mm and φ 20mm, etc.
2.3 Generally φ 3mm LED is recorded as T-1; hold φ 5mm is recorded as T-1 (3/4); hold φ 4.4mm is recorded as T-1 (1/4).
High directivity: generally, it is a pointed epoxy package, or a package with a metal reflection cavity, without scattering agent. The half-value angle is 5 ° - 20 ° or less, with high directivity, which can be used as local lighting source or combined with light detector to form an automatic detection system;
Floating suction pump
Made of aluminum alloy casting, anodized anti-corrosion treatment, the use of high pressure water as the driving source, compact size, light weight, nice, easy to use. Mainly used in construction basement, cabin, warehouse and other explosive, flammable and explosive liquids inserted suck. Working principle is to use high-pressure fire water cycle as the pump drive power source, the pump does not produce Mars in the working state, will not cause flammable and explosive liquids, safe and reliable.