COB GROW 100W COB LED Grow Light 32x3W Hydroponics Led Plant Grow Lights for Vegtative and Flowering (Black) COB GROW led plant grow light ultra bright. Really helps when the plant need extra boost of light, or a few of sun, raining, snowing , dark indoor etc. Professional Lighting. The Led grow light provides you a targeted spectrum (including 440nm,460nm,530nm,630nm,660nm wavelength ), and gives your plants only the light that they can use, offering them an extra boost in production. Patented unique design of reflective cup for higher light-gathering effect. High PAR value and Lux value than normal led grow light, reducing light and Par value loss and providing better growing environment for plants. Help fast growing of plants and improvement on output, optimize the investment return of commercial plant growing. Integrated COB(chip on board) brand new 3w Epileds chips,83 degree reflective cup, best light proportion, perfect solution of heat dissipation, apply to flowering and fruiting stages. Special fans vest design, with cooling fan, Light won't generate any ultra heat even works 18hrs a day, keep light has longer service life.On/Off switch is on the back of the light, don't need to cut off the power while you need to turn off the light.On/Off switch is on the back of the light, don't need to cut off the power while you need to turn off the light.