Line 1, the glue: led lamp present so severe in 1 year of yellow picture because of poor glue materials, there are many in the name of the waterproof PU adhesive to sell defective glue, waterproof function is poor, prone to yellow dim, the same as normal, it is waterproof PU glue offer are far, basically offer is more than double.

2, see waterproof plug: led real big mall, open in every year, customer consulting a: "this year have new quotation", there are some manufacturers are under the pressure, will cut a little on the data, but there are some manufacturers to lower profit to protect the original customer, waterproof plugging also have cheap, but relatively conductive owe good, still have waterproof function is poorer, easy cause leakage, the water basically square four core plug is also very good though its price is higher, but the overall safe enough to reach 99% waterproof function, the 1% May be not tight.

3. Look at the aluminium material: ultrathin aluminum material is easy to change type, in the aluminium material of the line lamp is chosen, the manufacturer of the norm will consider the heat dissipation function to be not good, do we think aluminum material is thicker the better? Otherwise, your makeup, foundation is thicker the more beautiful? Certainly not, aluminum if want to do it is not easy to deformation, good heat dissipation, it is bound to choose moderate thickness, cannot say blindly want the thicker the aluminum, the better, the other if the line of light aluminum heat dissipation, the better the thinner? NO! The thinner the aluminum, the better the heat, the device is easy to knead deformation, so it is not good to cut corners! Other namely is a cost performance question, if want to want cost performance high, the manufacturer USES material must be controlled appropriately good.

4. Look at the light bead components: inside the industry, the packaging manufacturer is famous and so many, but can you tell if this is the brand chip you got? Some sank his conscience line lamp manufacturer quote about how good the original data, with a few cents to pretend to be a big brand of chip to sell, but offer law had always exist, what good could buy cheap goods? The customer is also to cover up the ring, unforced on the trap, is also drunk. Some lights, domestic brands, through test and improvement for many years, their process and performance is also very strong and safe, according to the project cost you also can choose a few domestic good brand.

5. Look at the selection of circuit board: will aluminum substrate be better than glass fiber board? It is true that the quality of the line lamp, mostly used aluminum substrate as the source of the circuit board. Has the glass fiber board always been labeled as invalid? This is not yes, once I also think that glass fiber board products is high quality product, later showed by technician, also understand, glass fiber board has good or bad, and even can also better than the quality of the aluminum plate, stable performance, whether aluminum base plate is still a glass fiber board, they are all good circuit board.