Today we will talk about the power of lamps. The final power of all lamps must be tested according to the electrical power meter. Let's take an example. 18 15W lamp beads are used in waterproof par lamps. Because of the heat dissipation problem, we need to control the overall temperature of the lamp below 60℃, which will reduce the driving current of the lamp beads to change the rated power of the overall lamp. Of course, the specific reduction depends on the configuration of the lamp itself and the heat dissipation conditions. If the lamp bead ceramic base, copper thermal base, high thermal conductivity aluminum substrate, PFC power supply, IC on the motherboard, mos and other electronic components all use high temperature resistant chips. The LED par light is equipped with an external waterproof fan to assist in heat dissipation, so the heat dissipation is good, the lamp is relatively better protected, and the light decay of the lamp beads is reduced. Secondly, configuring temperature control is also a means of protecting lamps. Generally speaking, after the lamp is lit for an hour, the power is stable at this time. We can know the total power of the whole lamp by taking a power test meter. Instead of multiplying the number of lamp beads in the lamp by the power of a single lamp bead. For example: the total power of 18 15W lamps is 18x15=270W. This is a wrong way to calculate. The correct way is to follow the test results of the power meter.
Many people mistakenly believe that the more lamp beads there are, the higher the power of the whole lamp, ignoring the maximum heat dissipation capacity that this lamp can withstand.
For electronic appliances, the temperature cannot exceed 60℃. Take the par lamp as an example. Its power is determined by its heat dissipation capacity. The heat dissipation of more aluminum is definitely better than that of less aluminum. It is not simply based on the number of lamp beads x lamp bead power.
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