4' grow light bulbs SANSI LED Grow Lights for Indoor Plants, 600W Full Spectrum Clip-on Gooseneck Grow Light with Ceramic Tech.,40W Power Plant Ligh

4' grow light bulbs SANSI LED Grow Lights for Indoor Plants, 600W Full Spectrum Clip-on Gooseneck Grow Light with Ceramic Tech.,40W Power Plant LighFeatures: The secondary optical design: PPF: 67. 2 mol s, PPFD: 783. 28 mol s @1ft. Through the lens for secondary scientific light distribution, improves light utilization, giving plants more supplementary light. Using only 40 watts of power, equivalent to 600W incandescent bulbs. Based on 18 hours per day usage, save up to 90% electricity, annual estimated cost $26. 28. 360 Gooseneck & Full Spectrum: Making every plant covered by 360 surrounding

Features:

• The secondary optical design: PPF: 67.2 μmol/s, PPFD: 783.28 μmol/s/㎡@1ft. Through the lens for secondary scientific light distribution, improves light utilization, giving plants more supplementary light. Using only 40 watts of power, equivalent to 600W incandescent bulbs. Based on 18 hours per day usage, save up to 90% electricity, annual estimated cost $26.28.
• 360° Gooseneck & Full Spectrum: Making every plant covered by 360° surrounding light, actualize a more ideal full life cycle full spectrum supplementary light program, covering the entire visible spectrum of 400nm-780nm, suitable for every cycle of plant growth, effectively promote plant growth, and improves crop yield and quality. Providing 4000K daylight, color rendering index Ra is close to 100, infinitely close to natural light.
• Replaceable bulbs: Different from similar products on the market, the bulbs of this product can be replaced, which not only facilitates customers to replace broken bulbs at any time but also avoids wasting money to repurchase the whole grow light. Saving money and protecting the environment. Additionally, whole-life warranty for the bulb.
• Patented Ceramic Technology: Chip on Ceramic, SANSI's patented technology replaces the traditional Mcpcb aluminum substrate with a non-conductive ceramic heat sink, and directly solder the LED chip on the ceramic heat sink, effectively reducing the systematic thermal resistance between the LED PN junction and the surface of the heat sink, resulting in faster heat conduction and higher product reliability, producing a SANSI bulb with higher light efficiency.
• Guarantees: ETL listed & CE certification, quality and safety verified, 25,000 hours lifespan and whole-life warranty for the bulb.

Specifications:

Item Model Number: C21GL-GE26-10W
Wattage: 40W（4*10W)
Voltage: AC 120V 60Hz
Replacement Wattage: 300W Incandescent Bulb
Beam Angle: 60°
PPF: 52 umol/s
Product Size：Φ62mm*H84mm
Weight: 3.12lb