What about the high brightness of a flashlight? Bull LED? Or single head high power LED? That kind?
At present, there are still a lot of brightness need to be observed on the market. The main thing is to rely on your own eyes or measure together. However, in the case of the same total power (such as 1W), multiple small power heat generation will be greater than a single high-power heating capacity. The reason is very simple, now all the conductors are not super conductor, there are resistance, since the resistance, the efficiency of electricity will not fully utilize the 100%, will certainly have the energy loss in the heating wires above, so the more long more heat is inevitable.
Agree with the 1 floor. However, small power, that is, long LED brightness unit is generally MCD, high power brightness unit is generally used lumen (LM). LM and MCD cannot be converted. Because LM is the unit of total luminous quantity, MCD is the brightness unit of a certain luminous surface, just like the total decoration after buying a house and the relation of the charge of the floor tile.
Have their respective scope of application, 1W high-power LED irradiation range is small, but far away, long LED is on the contrary, now there are integrated two kinds of bulb together with the headlights, made in 120 or so, flashlight is not clear
