Customized label/ Logo can be made onto packing box.
Packaging & Delivery
1 x Box
Estimated Delivery Time
2-8 business days
3-8 business days
2-10 business days
1-7 business days
6-14 business days
7-12 business days
China Post Air Mail
7-15 business days
China Post SAL
14-30 business days
30-40 business days
1. 3-10 business days for Sample Orders; 7-40 business days for Bulk Orders.
2. "Business days" means Monday-Friday, excluding holidays.
3. DHL and UPS cannot ship to military or P.O. boxes address.
4. The Shipping Service above is for reference only, for any other questions, please feel free to contact us.
Send a message to us:
Q:Amount for the LED - 666 desk lamp can use charging time
Strictly speaking, it is best not to use when charging. Because: 1. Easy to get an electric shock. 1. Affect the service life of the product.
Q:Need to solve the problem of the LED light flashing
Don't listen to their blather. I am happy for the hangzhou hong yan electric appliances co., LTD., prevent myopia LED desk lamp, use for two months, flash, happy to buy in the new, two months, crossed and sent to the factory repair, two months later, crossed over the warranty period now, happy to buy, no matter the also don't do this kind of desk lamp, can't, looking at that - all LED flash small, how to also won't be bad, so please people in a dc power supply, not 12 v, so we have to use the 9 v dc power supply, it's no use router didn't effect, good, don't flash at all. This could be a blind cat touch dead mouse, solved the problems of inductance.
Q:LED lamp circuit of current more conference appear what problem
Large current and more way to reduce the current. Of the main parameters affecting the service life of the LED is current and temperature, electric current, the greater the corresponding calorific value was greater, so the LED driver must reasonable control current, the other current large whole lamp of photosynthetic efficiency is low.
Q:LED lamp in the 4 v lead-acid battery charging problem!
4 V lead-acid battery discharging termination voltage 3.8 V, charging termination voltage should be around 4.6, the last is constant current charging mode, constant pressure finally, 8 to 10 hours with commonly used charging current (one 8 of the charging current of battery Ann hours). I hope it can help you.
Q:LED rechargeable lamp, battery voltage is how many v?
Using is a kind of super high brightness LED flashlight, its working voltage is higher, generally 3.35 V - 3.65 V, working current is relatively large, at 30 ma -- -- -- -- -- 50 ma, high brightness. Above is reproduced, the following is what I write. You can also in the baidu search is known here. 1, rechargeable lamps with light emitting diode and a flashlight with should be the same. The above work should be refers to the voltage on single diode voltage. Don't know how much is the battery pressure is how even get to see that a few diode. But according to my experience, I've hurt countless this flashlight and desk lamp) 4 v battery voltage is not the batteries are lead sulfate is 6 v battery. 2, see the internal structure of light emitting diode, the bulk of the pole is negative, the light of the part is connected to the cathode, or look at like a bowl of concave portion of the attached to the cathode. 3, heard "filament" if you want to ask is "filament light source" refers to a hot filament of the bulb, tube produced by light sources; If you want to ask is "filament voltage" is refers to the added on both ends of the filament voltage. Case there is a small light bulb and a dry cell formed a closed circuit is: at the ends of the battery voltage = bulb voltage + the consumption of battery internal resistance. Usually learn high school electricity can use this relationship. 4, x ray tube, extreme conditions, the theory of complex sentence couldn't say for sure.
Q:Hurry, common desk lamp is ac or dc output, and energy saving LED lamp?
Ordinary is communication, LED dc, lamp is high.I hope you can help me.
Q:The LED lamp is bad for your eyesight?
Thank you for the invitation. With my professional knowledge is concerned, my suggestion is that: lamp, especially children use desk lamp, it is best not to use leds. It is recommended to use 3500 k color temperature of tungsten halogen light source. Reasons for not much details,
Q:Students do homework with LED lamp to choose LED strips or LED lamp bead?
SMD LED Angle is large, relatively uniformity is better. Basically is to see light color and brightness suitable for on line!
Q:How long does a charging lamp charge?
Note: if charging desk lamp is newly bought, generally it has a certain power. The electricity used up inside first, and then, it will more protection to the battery.
Q:Do LED lamps really protect your eyes?
But now on the market the LED desk lamp is very much also, choose when to pay attention to whether can face light source, gradient dimmer. TOPDAY use is good