Shenhai Ho phatloha-Bopaki
Mmaraka o tletse ka mefuta e fapaneng ea mabone a sa phatloheng a LED, e 'ngoe le e' ngoe e na le litlhaloso tse fapaneng ho tsoa ho bahlahisi ba fapaneng. Kahoo, motho o khetha joang lethathamong lena le pharaletseng la lihlahisoa? Kaha ho na le li-benchmarks tsa ho lekola ts'ebetso ea lisebelisoa tsa mabone a LED, here’s a special guide to assist in the procurement process and help avoid losses in lighting projects due to inappropriate sourcing.
1. Index ea ho Fana ka Mebala (CRI):
Before purchasing, it’s crucial to check the product specifications or ask the sales representative about the CRI. Ka kakaretso, 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. Ka hona, 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. Ka tsela e loketseng, choose fixtures with frosted diffusers that emit a soft, even light.
3. Overall Luminous Efficiency of LED Lighting Fixtures:
The “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. Ka hona, choose LED lighting fixtures with high lumens per watt (preferably greater than 80 lm/W; mohlala, fixtures with an efficacy of ≥85 lm/W are a good choice).
4. LED Temperature Rise:
Ka tloaelo, the permissible mocheso rise for LED lights in use is between 25℃ to 30℃. Ka ho toba, 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. Ho phaella moo, 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%. Ka mor'a nako e itseng, 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. Mohlala, LEDs from reputable brands can last over 30,000 lihora, which is especially convenient for large-scale lighting projects.
These are the tips for selecting LED explosion-proof lights. Ka tšepo, this guide will assist you in making informed decisions.