There are many kinds of LED Luminaires. What is the difference between the Luminaire with optical lens and without optical lens?Let me explain it for you.
Size L173xW71mm, 12in1 optical lens, T2M angle with cutoff, optical PC material,compatible with SMD 5050, IP67, Horizontal installation,suitable for street light.
The light emitted by the LED luminaire with lens will be more effective than the luminaire without lens.
If the lens is not equipped, the light source will be greatly scattered and the irradiation distance will be insufficient. But the light near the light source shines brightly. Take street light as an example, Lens can control the direction of the light, put most of the light on the road; secondly, Lens can make the light more uniformity, to avoid some area bright and some area dark. If without lens apply, street light source only emit the light in 120°direction, and uniformity is not good and with high dazzle light, which bring very bad effect for the driver during driving on the road.
Size with L173xW71mm,12in1 optical lens,T2M angle with semi cutoff,Vertical installation, compatible with SMD 5050, IP67,suitable for street light.
The cost is different:
Although to equipped the luminaire with lens, it increase the cost of the luminaire, but Lens can improve light using efficiency, so unit light using efficiency cost is lower than the luminaire without lens.
Size L173xW71mm, 12in1 optical lens, T2M angle with Non cutoff, compatible with SMD 3535, IP67,suitable for street light.