The Kessil H150 Blue LED grow light is specifically for boosting VEGETATIVE GROWTH, without sacrificing yield. It promotes stem growth while reducing internal lengths. 

When hung 12" to 18" above your plants, a Kessil H150 covers a circular area of about 2 feet in diameter. Besides using as a standalone LED source, its small size also allows you to use it in conjunction with your existing HID light as a booster or supplemental light.

Designed specifically for indoor growing experts, the Kessil H150 provides a high-density LED array encompassed by specially created optics that generates a powerful stream of light for in-depth penetration. These optics provide maximum photon injection into your plants!

Specifications:

LED - 30-watt High Luminous DEX 2100 LED
Dimensions - 4.49" long x 2.48" diameter
Power Supply - 100-240V AC (Input), 24V DC (Output)
Power Usage - 36W (40W Max)

These energy efficient LED grow lights draw 36W and are cool to run. The modular design gives you nearly unlimited flexibility for arranging exact light coverage for your garden.

More info (PDF format)