Led Candle Light indoor Energy-Saving, Long Lifespan, Bright, Eye caring, good heat
- Ref Price:
-
- Loading Port:
- Ningbo
- Payment Terms:
- TT or LC
- Min Order Qty:
- 6000 pc
- Supply Capability:
- 1000000 pc/month
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Application: Indoor
Advantage:Energy-Saving, Long Lifespan, Bright, Eye caring, good heat dissipation
Materials: Aluminum+PC Cover.
Parameter:3W-4W SMD2835 Voltage:220-240V RC voltage-reducing.BaseE27/E14,240-320Lm,RA＞80,2700K-6500K, Candle Light Size:37mm dia.Beam Angle 180 degree.Different types,different size
- Q: Why is 3W's LED plastic bulb so cheap on the market? Is there any drawback to the price difference between aluminum and aluminum?
- The first is Aluminum Alloy better heat dissipation, aluminum is relatively high, and made products, together with the positive effect is not the same, in addition, the wick and the circuit there will be differences, this will also affect the application of life and feelings.
- Q: LED bulb lamp drive power electrical connection, will delay a few seconds before the lamp light, and power creaks, who know what it is!
- How many seconds delay? It won't take so long. How many bulbs do you usually soak in 0.5 seconds? A squeaky noise is usually a transformer or inductance whistle, and at least it shows a poor manufacturing process.
- Q: How to choose the bulb power?
- If the public is not high, the quality requirements, and to control the price, you can choose non isolated, because it does not require isolation transformer, so the cost is relatively low, but the aluminum substrate voltage requirements is relatively high, otherwise there may be charged radiator, and still light outside is not very beautiful.
- Q: LED how does the bulb return electricity?
- maybe because Make the question clearWhat is the return current?
- Q: What are the driving IC used in LED bulb?
- MT7930, LM3445MM do bulb bulb, the effect is also ok.
- Q: In a bulb, the ambient temperature of the LED is LED, the temperature of the air in the bulb, or the temperature of the aluminum substrate
- The heat sink temperature and the temperature of the radiator is not the same, the heat sink through thermal grease or other heat conducting medium to heat to the radiator, the temperature will not coincide. And the temperature inside and outside the radiator is also different.
- Q: What's the reason for the LED bulb strobe?
- 8W offline LED driver GreenPoint reference design with solid state lighting standard energy star "as an example, the sine wave regulator side flyback power conversion does not provide constant energy to the primary bias, dynamic self supply (DSS) circuit can be activated and the light induced flicker. To avoid this problem, it is necessary to allow primary bias to be discharged at each half cycle, and accordingly, the values of the capacitance and resistance that constitute the bias circuit need to be appropriately chosen.
- Q: Will the power of the LED bulb grow longer and longer? Why?
- Could you tell me the measurement method? - how about the side current and voltage? Or, whether direct measurement of active power under mains power supply?Also, can you tell me the circuit of LED bulb? DC power supply or AC power supply? Constant current module drive or RC current limiter? If the power supply is 12 volts low, is the resistor only current limiting?I feel something doesn't make sense......In one case, the longer the duration of the LED bulb, the greater the power:In some advanced LED bulb bulbs, an anti impact "slow start" circuit is added to the design, and a NTC (negative temperature coefficient) resistor is incorporated into the LED power supply circuit.Because of the larger resistance of NTC in cold state, the current of LED is smaller and the power is relatively small;With the use of electricity LED bulbs, NTC resistance temperature gradually increased, the resistance is reduced, the current of LED is also increased, so the power LED bulb also increases, temperature stability, until NTC resistance unchanged so far.
- Q: What's the difference between a glass cap for a bulb and a PC hood?
- 1, impact strength comparisonPC and glass is the biggest difference resistance shock, PC is transparent plastic, the most resistant to impact, smashing not broken.Similarly, PC is 200-300 times the impact resistance of glass. PC is 30-50 times the impact strength of PMMA acrylic.
- Q: Want to find common features, unified purchase accessories repair!
- The most common problem is that 1, the drive power is broken 2, the light source due to excessive or excessive flow leading to necrosis
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Led Candle Light indoor Energy-Saving, Long Lifespan, Bright, Eye caring, good heat
- Ref Price:
-
- Loading Port:
- Ningbo
- Payment Terms:
- TT or LC
- Min Order Qty:
- 6000 pc
- Supply Capability:
- 1000000 pc/month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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