E27 B22 12W Dimmable UV Germicidal Lamp Bulb Stable IC Constant Current

E27 B22 12W Dimmable UV Light Sterilize LED Bulb White UVA Germicidal LED Light
 
 
The Comparison of Principles of Sterilization Between UV-C and UV-A

First , UV-C can kill bacteria because the band of light is 200-280nm which is invisible tohuman eyes, also called ''invisible light sterilization'' , However , another specific band in UV-A which is around 405nm because it is visible to the human eyes , also is known as " visible light sterilization '' .
 

Product Description:
 
1 . LED UV-A Sterilization Bulb : One bulb , two UsageSterilization and lighting use special LED chips ,has a good sterilization effect.
2 . It kills the bacteria oxidation instead of damaging normal cells.
3 . No risks to humans,you can use them normally without taking any specific protective measures.
4 . No light damage to most organic compounds,which can be used normally for a long time.
 
Product Advantages:
 
▶High transmittance over 90%                    ▶270°beam angle
▶Excellent PC cover                                    ▶High heat conductive flame retardant plastic for housing with aluminum inside
▶Long life SMD LED chips with high temperate PCT.     ▶Thick aluminum plate
▶Special UV chips+ lighting led chips          ▶Over current / Over voltage protection
▶Can choose different CCT(2700/4500/6500K) in the same cost for lighting mode
▶IC driver(switch supply power) constant current constant voltage.
 
 
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Q2: what is CRI?

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