common problem:
1, then a good light, the LED lights kept flash, what is the problem?
Reason: LED lamp beads and power does not match lead, please consider the replacement of power or lamp beads, we shop are supporting the foot.
2, how to determine whether the original lamp is less than tile or tile?
High power is the most common cast light industrial and mining lamps, from the weight of this heat sink kit point of view, the light is not enough tile, the standard description of the top picture for your reference, the corresponding weight is the real wattage!
3, when the replacement lamp beads to pay attention to what place?
The most important thing is to wipe the previous thermal grease, because the thermal grease also has a shelf life, wipe clean our new.
B lamp beads fixed, four corners to the four screws, not less, to tighten, do not move so far, it is best to use an A4 paper to see if it can plug into the lamp beads and heat sink, Row.
C drive do not no-load test, equipped with lamp beads and then test the voltage and current, otherwise the test then then connected to the lamp beads, the voltage is too high to easily burn the lamp beads (burning rate of up to 10%).
note
1, all sizes are in millimeters.
2, prohibit the drive led without cooling device.
3, it is strongly recommended to use the temperature is not higher than 55 ℃.
4, must comply with the appropriate current derating to keep the junction temperature below the maximum.
The LED is not set to drive with a bias bias.
1, delivery
After the buyer payment, we will deliver the goods on time, the product delivery, delivery of goods, delivery service time provided by the carrier, not including weekend holidays. Transit time may vary, especially during holidays.
Parents must fill in the correct address at the time of purchase and we will use this address
EMS: 5 ~ 9 working days.
DHL, UPS, FEDEX, TNT: 3 ~ 6 working days.
AliExpress Standard Shipping Cost: 12 ~ 30 working days
China Post Registration E-mail: 12 ~ 30 working days
2, warranty
All lamp beads will be tested and delivered 100% before delivery, safe packing.
We promise 2 years warranty, please follow the lamp beads in strict accordance with the use of parameters
We are very grateful to you for providing us with 5 star positive feedback,
If you are not satisfied with the professionals, please contact us, we will be happy to serve you
3, After sale
If you are not satisfied with these items, please contact us within 7 days after receipt of the goods, exchange or refund, to return or replacement of the lamp beads, please do not use welding, please return or replacement before contact me. In the case of no quality problems, if you want to return or replacement, you can still send it back to us, but you have to pay an additional round-trip shipping costs!
