Up to 100 million shots and 5 years’ expected service lifetime(less than 10% failure and 20% power attenuation), without any consumable. Stable performance, low malfunction rate, no downtime. Very easy maintenance and after sales services. Low running cost, but high return on investment.
| Diode laser | LED | LED Advantages | ||
| Thermal damage | Light power | Similar | The burn risk caused by overheating is much lower. | |
| Thermal power | Similar | |||
| Chip size | 1*10mm | 7.5*7.5mm | ||
| Conclusion | Similar total thermal power, LED has bigger heat dissipation are and smaller heat flow density. | |||
| Heat transfer patch | Pass to the bottom and rear Average path is 1.5mm | Pass to the bottom Average path is just 0.2mm | ||
| Conclusion | LED has very short heat transfer path, lower thermal resistance and much higher efficiency of heat dissipation. | |||
| Mechanical damage | Stress | Rectangle, high length-width ratio. Under stress of thermal deformation and thermal fatigue, chips easily desoldering or broken in pulsed working | Square, 1:1 length-width ratio. Extra thin chip and large soldering area firmly but low stress. | The desoldering and broken risk is much lower. |
| Conclusion | Because of chip structure, LED chip’s stress is smaller than diode laser | |||
| Optical damage | Light power | Similar | The burning risk of light emitting area is much lower. | |
| Light emitting area | Size 0.01*0.1mm High brightness, foreign body pollution can cause light-emitting surface burned | Size 5*5mm Brightness is just similar to normal LED lamp of flashlight, slight dust will not being ignited to burn the lighting surface | ||
| Conclusion | Because of surface emitting, the brightness of LED light emitting area is much smaller than diode laser. | |||
| Chain damage | Not like diode laser, for LED chips, single area’s failure does not affect other emitting area | No chain damage risk | ||
Planar LED use near infrared light with wavelength 780~850nm, little absorbed by skin tissue and vascular etc., but mainly absorbed by melanin in follicle, so hair removal is highly effective.
Light spectrum has width, so can apply to more skin colors including dark skin.
A Evenly rectangle spot with nice consistency, energy is uniform, no painful feeling during treatment. Surface array light source, lower max. local brightness, no harmful to human eyes though direct watch. B Planar light emitting area, uniform rectangular spot, and the light’s divergence angle is small to 15°, easily penetrate into skin, very deep penetration depth, deep hair follicle also can be treated.
