Shenhai a proba de explosión
O mercado está inundado de varios tipos de luces LED a proba de explosión, cada un con especificacións diferentes de varios fabricantes. Entón, como se elixe entre esta ampla gama de produtos? Xa que existen certos puntos de referencia para avaliar o rendemento das luminarias LED, here’s a special guide to assist in the procurement process and help avoid losses in lighting projects due to inappropriate sourcing.
1. Índice de representación de cor (CRI):
Before purchasing, it’s crucial to check the product specifications or ask the sales representative about the CRI. En xeral, LED lights with a CRI between RA80 and 100 exhibit excellent color performance; those between RA50 and 79 have average color performance, while lights with a CRI below Ra50 have relatively poor color rendering. Polo tanto, it’s advisable to select LED lighting fixtures with a high CRI.
2. Avoid Glare:
Glare significantly impacts the quality of lighting and should be minimized. Opt for lights that do not produce glare. Idealmente, choose fixtures with frosted diffusers that emit a soft, even light.
3. Overall Luminous Efficiency of LED Lighting Fixtures:
O “luminous efficiency” of a finished LED light is the total luminous flux emitted by the LED under rated voltage divided by the total power consumed, measured in lumens per watt (lm/W). The higher this value, the better the energy-saving effect, and the less electricity used. Polo tanto, choose LED lighting fixtures with high lumens per watt (preferably greater than 80 lm/W; por exemplo, fixtures with an efficacy of ≥85 lm/W are a good choice).
4. LED Temperature Rise:
Normalmente, the permissible temperatura rise for LED lights in use is between 25℃ to 30℃. En concreto, the temperature on the LED’s heatsink is the ambient temperature plus the allowable temperature rise. That means, if the ambient temperature is 37℃, the temperature on the LED heatsink should be 67℃ (37℃+30℃). If it exceeds this, the temperature rise is considered non-compliant. Heat is the enemy of LED performance; the less heat produced, the higher the luminous efficiency of the LED light. Ademais, a rapid rise in temperature on the heatsink indicates high thermal conductivity and low thermal resistance of the LED lighting fixture.
5. LED Lifespan:
The initial luminous flux of a new light is 100%. Co paso do tempo, the luminous efficiency of the light will decrease. The lifespan of an LED is the time it takes for its luminous flux to reduce to 70% of the initial flux. Naturally, the longer the better. Por exemplo, LEDs from reputable brands can last over 30,000 horas, which is especially convenient for large-scale lighting projects.
These are the tips for selecting LED explosion-proof lights. Oxalá, this guide will assist you in making informed decisions.