Helpful Lighting Hints

Type of Lamp	Light Coverage	Light Coverage w/ sunlight	Cost per 16 hr. day @ 5 cents per KWH	Light Spectrum
Metal Halide (MH)
175 Watt 250 Watt 400 Watt 1000 Watt	2' x 2' (4 sq ft) 3' x 3' (9 sq ft) 5' x 5' (25 sq ft) 8' x 8' (64 sq ft)	3' x 3' or 9' sq 5' x 5' or 25' sq 8' x 8' or 64' sq 12' x 12' or 144' sq	$0.14 $0.20 $0.32 $0.80	Metal Halide is high in blue light with a 30% boost in Orange/Red light.
High Pressure Sodium (HPS)
150 Watt 250 Watt 400 Watt 600 Watt 1000 Watt	2' x 2' (4 sq ft) 3' x 3' (9 sq ft) 5' x 5' (25 sq ft) 7' x 7' (49 sq ft) 8' x 8' (64 sq ft)	3' x 3' or 9' sq 5' x 5' or 25' sq 8' x 8' or 64' sq 10' x 10' or 100' sq 12' x 12' or 144' sq	$0.12 $0.20 $0.32 $0.48 $0.80	Orange/Red light, high lumen output per watt.
Son Agro (HPS)
270 Watt 430 Watt 1075 Watt	3' x 3' (9 sq ft) 5' x 5' (25 sq ft) 8' x 8' (64 sq ft)	5' x 5' or 25' sq 8' x 8' or 64' sq 12' x 12' or 144' sq	$0.21 $0.34 $0.86	Orange/Red light, with a 30% boost in Blue light over standard HPS lamps.

Fluorescent Lighting :: Coverage Recommendations

We recommend mounting your fluorescents 2-4" over the tops of your plants.

12" Tubes

For Stronger Light

2 Tubes - 2 Square Feet (2' X 1')

4 Tubes - 4 Square Feet (2' X 2')

For Lower Light

2 Tubes - 3.75 Square Feet (2.5' X 1.5')

4 Tubes - 7.5 Square Feet (2.5' X 3')

24" Tubes

For Stronger Light

2 Tubes - 6 Square Feet (4' X 1.5')

4 Tubes - 12 Square Feet (4' X '3)

For Lower Light

2 Tubes - 9 Square Feet (4.5' X 2')

4 Tubes - 18 Square Feet (4.5' X 4')

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