Judging from the material:
The use of excellent quality lamp bead, resistance, and copper thick flexible plate. How to identify superior quality LED beads? This china ip68 led strip can be discussed in another article.
Pure copper wire is used, and the cross section of the wire is large. Try not to choose copper aluminum, or even aluminum, iron wire. How to tell whether it is copper wire?
Watch the potting glue, the requirements of high transparency, excellent softness, uniform potting, no odor.
The power source of the large chip bridge stack is fewer likely to burn the lamp bead. Because the bridge piles have current limits, say 4A, 6A. If the bridge pile of tiny chip is used, it is easy to overcurrent and burn the incoming electrode.
Try not to fold the strip repeatedly when using it. Folding the lamp belt not only makes the heat of the lamp belt not escape, but also easily leads to the deformation of the elevated voltage wire or the fall off of the lamp bead pad on the flexo plate, resulting in the lamp belt not being bright or burned out.
Judging from optical parameters and power:
The larger the LED chip, the larger the margin when using the lamp bead, then the light effect will be better, the service life will be longer.
In terms of light parameters, a decent lamp belt needs the following items:
Extreme light flux, preferably high light efficiency. Light efficiency is the amount of light flux per unit of power consumed. Elevated light flux can be achieved by improving the unit power of the lamp bead, but to ensure high light efficiency at the same time, the lamp bead chip must be large chip can have your cake and eat it.
Have accurate, stable correlation color temperature, and low color tolerance. In this way, the color and brightness of the lamp strip look extremely even.
Have a strong color rendering index, such as 80 or above 90. The color rendering index is the fraction that restores the original color of an object. 100 is 100 percent of the color of the object in the sun. Of course, only used in the backlit atmosphere effect of the lamp belt, you can not require a high color rendering index, and try to have extra light flux. Because the color index and light flux are largely inversely proportional.
Low voltage light band
Types of low pressure lamp belts
Low pressure lamp belt is mainly the flexible lamp bead board mentioned in the elevated pressure lamp belt. It is equipped with different external materials to form many different types, including the following:
Bare board. Typically, double-sided adhesive is affixed to the back of the lamp bead board to facilitate fixation on the surface of various mounting materials.
Drop glue. Drop soft silicone on the front of the lamp bead board, and the back is still double-sided adhesive. This kind of drip rubber lamp belt than a bare plate, for the circuit and lamp bead protection is slightly higher.
Fill with glue. Similar to the method of elevated pressure lamp belt, the lamp bead bare board is filled with resin or transparent PVC plastic. This can achieve a particularly excellent level of protection, and can be used outdoors.
The casing. The bare panel light belt is covered with rectangular transparent silicone sleeve, and the plugs on both sides are also sealed with silicone. Because compared with resin and PVC, silica gel has better performance: extra temperature resistance, additional stability, excellent resilience, minor deformation, elevated insulation and so on. In addition, the sealed tube light belt can also be used in outdoor scenes, and even has an IP67 protection rating.
Silica gel. It's like a casing, but it's wrapped in a thicker, two-tone silicone. White silica gel is used to block the circuit board, bringing a more lovely appearance. Milky silica gel is used for light transmission. This kind of light transmission can make the LED lights become soft and become a coherent light belt. At the same time, it also has all the excellent characteristics of the cased light belt, so it is one of the best quality light belts.
Cold light belt. Broadly speaking, there are two kinds of stiff light belt, one is the material itself is not flexible board, but glass fiber board or aluminum substrate. Therefore, it can not have the free bending function of the flexible plate, which is commonly used in the straight-line use scenario. Another is the flexible lamp strip bare plate pasted on the aluminum profile, usually with soft light PC cover, to achieve a more uniform light, more gentle effect.