LED lamp with LED lamp luminous flux used in PC's that have a great relationship, light transmittance through the mask of each PC is different, so even the same power, the same lamp beads, installed the same The LED lamp tube is equipped with a PC cover of different light transmittance, and the brightness is also different. The PC cover of the LED tube is basically a PC cover, and basically no glass cover is used. They are all made from PC pellets (chemical name: polycarbonate) and then mixed with diffusion powder. What is the light transmittance of the LED lamp PC cover? The PC cover is roughly divided into the following types: a transparent cover, a transparent stripe cover, a diffuse stripe cover (our company called: a thick stripe cover), and a milky white diffuser. (This is a light source bead that can be seen with a transparent cover) Transparent cover: Gu Ming, the transparent cover is a transparent PC cover. The lamp made by this cover can see the lamp bead, it is very glaring, easy to stun, and does not meet the human requirements for light. The light transmission performance is good, and the light transmittance of 91% can be achieved. Transparent stripe cover: This kind of cover is a translucent cover that can spread the light, but the light is not even enough, it will not be glare, and the light transmittance is about 88%. Diffusion stripe cover: Also known as a thick stripe cover, this case has a light transmittance of about 86%. The product made by this case does not seem to have a dark area, and the dark area is ingeniously avoided. Milky white diffuser: This cover is also the cover used by most manufacturers on the market. The general transmittance of this case is 83-85%; the light transmittance below 83 is that the spot of the lamp is completely invisible. Features of qualified LED T8 tube lampshade : 1) It has high light transmission, high diffusion, no glare, no light and shadow; 2) Suitable for the use of LED lamps; 3) Realize the conversion of point source illumination into spherical illumination 4) The light source is excellently concealed (effectively adjusting the diffusivity and light transmittance, and the light transmittance is maximized without seeing the lamp bead); 5) The light transmittance reaches 94%; 6) has high flame retardancy; 7) has high impact strength; Coin Cell Holders Coin Cell Holders ATKCONN ELECTRONICS CO., LTD , https://www.atkconn.com