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Three lights in parallel, and should be how the resistance of the step-down series?
- 6 V battery should use free WeiHuXing 4 ah lead-acid batteries, the charging voltage should be 7.2 V ~ 7.5 V, and to have full automatic protection function. Can't use 10 v charger. Don't know what LED lights you choose? The working current? Positive pressure drop? These have a connection and choose the series resistance and the dimming.s
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.s
How about the LED the lamp that shield an eye, ok
- The lamp that shield an eye does not recommend the use of LED, LED color temperature above 5000 k more, eyes are the most comfortable the best color temperature between 3500-4300 k, using leds to do the lamp that shield an eye too tired eyes. Recommend the use of three primary colors of eye hair yellow color of the brands
How long does a charging lamp charge?
- Charging commonly 4 hours is full of, but don't always keep filling. Because the battery will be overloaded, it is easy to be bad. Go down for a long time, the battery power will not durable. Moreover, this will not guarantee the safety of the battery, to believe, for its own security or security charge.s
What if the led lamp doesn't shine
- If it is a line break have to pick up, if there is black spots is the LED surface that is was burnt out, that is about to change the LED. Many of the LED circuit adopts the series circuit, that is to say an LED bad throughout the series circuit will not bright. Generally LED not easy bad, usually a transformer is the most easy to bad. Open it and see its
Folding LED touch lamp generally will be problematic
- That should see is a circuit board, or no circuit board, if there is a circuit board, circuit board regulated part of the easy problems, no circuit board switch are problematics
Want to buy the university dormitory with plug-in study desk lamp, LED the good good or tubes
- Some leds, white light is light, but some dazzling, often stay up late to some, more useful. The yellow is better for your eyess
Amount for the LED - 666 desk lamp can use charging time
- If need to replace the light source (light pipe), be sure to refer to LED lamp assembly for the specified parameters of the charging, and don't change the structure. LED rechargeable lamps surrounding not moisture, dust and impurities, such as have found that clean up in time. Try not to over and over again when applying the LED lamps and lanterns of switches, it can greatly shorten the service life of LED lamp. LED lamp battery charging protection is good, if need to replace please select qualified products. Charging in LED desk lamp of power recharged when finished quickly, do not run out of electricity, and then filling, please stay in xiao yu battery recharging. If long time don't have to, but after a period of time the charging time, on the ground of deposit must be put in wet placess
Why is outdoor commecial lighting important
- Reduced power consumption than conventional lighting.Typical light output for a 60w light bulb is 800 lumens:equivalent light output for an LED light is around 9w ,which equates to...
How does the traffic light system work
- Everyday, on your way to work, no matter you drive your own car or take a public transportation, you will meet a lot traffic lights which keep the whole city’s traffic under cont...
What's led flashing lights
- Led flashing lights are extremely easy to use and install. When activated, this amazing LED light is nearly impossible to miss, which helps first responders increase their visibili...
What's led recessed lighting retrofit
- Led recessed lighting retrofit can be used at Office lighting, home lighting, Commercial shops, hotels, exhibition halls, art gallery, Museum, and so on.Specifications and product ...
Have you ever used of emergnecy strobe lights
- LTE837 Starway Warning strobe light has eight lightheads and has 15 patterns offer to choose, the lighthead adopts pulse xenon tube, with high efficiency and energy-saving and stro...