Bulb (Omnidirectional Light Distribution) / C21BB-IE

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Product Features

●Environmentally-friendly and energy saving

●Safe to use, easy replacement

●Optimized spectrum which is safe to the human eye

●Constant current control, stable and reliable

Size Chart(mm)

Bulb (Omnidirectional Light Distribution) / C21BB-IE

Light Distribution Curve

Q: LED what is the glue between the aluminum base of the bulb and the cooling aluminum?: It is best not to direct contact with glue, glue because the thermal conductivity of aluminum than a lot of difference, even a thin layer will reduce the heat out of the speed of the screw can be used to aluminum plate and aluminum fastening together, the contact surface is smooth, when necessary, can use some conductive silicone grease amount

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 LED price of aluminum alloy 3W is probably about 30.

Q: How to choose the bulb power?: If it is household, choose the separation side, because the separation type is relatively safe, easier to pass through safety regulations, but the cost is relatively high, but suitable for home use.

Q: LED how does the bulb return electricity?: What is reflow? Never heard of it. I am a lighting technician

Q: How does the LED bulb go with the power?: voltage range as long as the 36V can be achieved, for example: voltage range 24v-80v is very good,

Q: What's the reason for the LED bulb strobe?: Common causes and treatment of LED light flashing:Generally, the human eye can detect light flashes with frequencies up to 70 Hz, which are not sensed above this frequency. Therefore, in LED lighting applications, if the pulse frequency appears below 70 Hz low-frequency components, the human eye will feel flashing. Of course, in specific applications, there are a variety of factors that may cause LED lights to flicker. For example, in offline low power LED lighting applications, a common power topology is an isolated flyback topology.

Q: What are the characteristics of LED bulb?: Less power consumption, a 5 Watt LED bulb, equivalent to 40 watts of ordinary incandescent.

Q: LED what does "A60" mean by bulb 60? And what does "MR16" mean?: MR is a reflector that is represented by a plurality of reflector groups, and 16 represents the maximum outer diameter of 1/8*16*25.4=50

Q: Is it possible to manually weld LED bulb bulbs?: You can ignore the effect of heat conduction and thermal grease, solder is better, I was doing a lot of tests, the thermal conductivity of thermal grease is about 1.2 to 2, aluminum more than 300, thermal grease just to fill the bottom of the LED and the aluminum substrate contact surface gap, you don't fill gaps don't hinder it the normal contact with the aluminum substrate at the bottom of the LED, will be lost, and the use of thermal grease you for about a year will have to replace the thermal grease, only unscrupulous vendors will deceive others say I added thermal grease, heat conduction effect is not fully qualified, in fact, for a long time, the potential will LED light spot the chip inside the loose because of the long-term high temperature, causing the current growing, until completely off

Q: Secret LED bulb bubble price difference why so big?: Structure. LED heat dissipation is very important, good bulb will be equipped with radiators, inexpensive, and its life can be imagined

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