Check the listing for details. 10W/20W/30W/40W LED Grow Light Full Spectrum Indoor Plants Growing Lamp SANSI. Color: Black, Condition: New. Listed at 7.49 USD. SANSI 10W Clamp LED Grow Light for Indoor Plants Wattage 10 Watts Growing Power 97.91 μmol/s/㎡@1ft. Lumens Flux 900 lumens Coverage 2x1 FT(grow tent) Suggested Plants Qty 3 (e.g.,Orchid or Succulent) Voltage 120V Lifespan 25,000 Hours Lifetime Bulb Replacement Support Installation Clamp Applications Desktop, Plant shelf Gooseneck Height 20 IN Power Cord Length 6 FT FAQs Q1: What is the length of the gooseneck? A1: 20 IN Q2: Is the grow bulb included? A2: Yes Q3:How long is the power plug cord? A3: 6 FT Q4:Does it has an on/off switch? A4: Yes Q5:Do the replacement bulbs need to be from the same company? or can it take any standard E26/27 bulb? A5: It's suggested to use SANSI Grow bulb to offer the best performance of the grow light for indoor plants Notice: PLEASE DO NOT TOUCH THE BULB when it's working. If you want to adjust the direction of the light, you can hold the base of the gooseneck, or adjust it when the power is off. 20W 2 Heads Gooseneck Grow light for indoor plants 40W 4 Heads Gooseneck Grow light for indoor plants 10W 1 Head Gooseneck Grow light for indoor plants 20W 2 Heads Gooseneck Grow light for indoor plants 30W 3 Heads Gooseneck Grow light for indoor plants 40W 4 Heads Gooseneck Grow light for indoor plants Wattage 20W 40W 10W 20W 30W 40W Growing Power 195.82 μmol/s/㎡@1ft. 783.28 μmol/s/㎡@1ft.10W 97.91 μmol/s/㎡@1ft. 195.82 μmol/s/㎡@1ft. 587.46 μmol/s/㎡@1ft 783.28 μmol/s/㎡@1ft.10W Lumens Flux 1800 lumens 3600 lumens 900 lumens 1800 lumens 2700 lumens 3600 lumens Yearly Cost 13.14 26.28 6.57 13.14 19.71 26.28 Coverage 2x2 FT 3x3 FT 2x1 FT 2x2 FT 3x2 FT 3x3 FT Suggested Plants Qty (e.g.,Orchid or Succulent) 5 10 3 5 8 10 Lifespan 25,000 Hours 25,000 Hours 25,000 Hours 25,000 Hours 25,000 Hours 25,000 Hours Lifetime Bulb Replacement Support Support Support Support Support Support Color White White Black Black Black Black