Low-power bathroom ceiling spotlights beads, arranged dispersed, can contribute to the heat.
Ceiling structural characteristics conducive to heat dissipation.
1. the Internal block the free flow of air. This is the biggest advantages Ceiling compared to other lamps. Closed without the circulation of air is a good thermal insulation properties of the insulator, in turn, to the free flow of air is the best heat sink. All hot objects in the world’s last all the heat into the air to go. Ceiling floor there are a lot of holes in the Ceiling of the shade, the heat generated by the bathroom ceiling spotlights beads through the air immediately to pass to go outside.
2. Lampshade good heat dissipation. We know that the convection and radiation heat and the size and materials related to the effect of radiation cooling of the plastic is very good, and shade is thin, so the bad influence of the thermal conductivity of plastics can be ignored.
3. A large area: according to a circular area of the formula: S = πr2, or S = π (d / 2) 2, a diameter of 45cm Round Ceiling, floor area is 1590cm2. Because Ceiling typically installed in the room, not too high at room temperature, so you can use the empirical data of 40cm2 / W, as can also be dispersed 40W of power. However, due to the floor near the ceiling, difficult to heat, so the actual cooling effect of the base plate will be worse. The key question is should install led high bay lights beads aluminum plate or PCB copper area has been large enough.