1. According to the g9 600lm led spot light luminous tube surface features are divided into circular lamp, side lamp, rectangular, surface emitting tube, lateral canal, miniature tubes, surface mount. According to the circular lamp diameter φ2mm, φ4.4mm divided, φ5mm, φ8mm, φ10mm and φ20mm. Foreign usually φ3mm light-emitting diode is denoted by T-1; the diameter of 5mm is denoted by T-1 (3/4); the diameter of 4.4mm is denoted by T-1 (1/4) [6-8]. By the half angle size can be estimated circular luminous intensity angular distribution.
2. From the angle of luminous intensity is divided into three categories:
High directivity. Usually tip epoxy package, or with a metal reflection cavity package, without scattering agent. The half-value angle of 5 °~ 20 ° or less, with high directivity, can make local lighting light source, and optical detector combined with to form automatic detection system.
Standard type. Commonly used as indicator, the half-value angle of 20 °~ 45 °.
Scattering. The half-value angle of 45 degrees to 90 degrees or more, the larger amount of scattering agent.
3. According to the structure of light emitting diode, LED spot light is divided into the epoxy packaging, metal base epoxy packaging, ceramic base epoxy packaging and glass packaging structure.
4. According to the strength and the working current of light emitting can be divided into ordinary brightness LED (light intensity is less than 10mcd); ultra high brightness LED (luminous intensity greater than 100mcd); the emission intensity at 10 ~ 100mcd called high brightness light-emitting diode.(Picture the product model: LED Spot light GU10 SC-MR16B005S02)
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