Hobbes
Well-Known Member
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I haven't been able to find the size light that I want for a test I'm doing, and most light panels have several inches of frame around them which is no good for me either - I need light right to the end. So I'm going to build my own panel with Par38 bulbs and sockets on a stick.
The 38 after PAR is the diameter in inches when divided by 8, which makes perfect sense to me. 38/8 = 4.75". It couldn't be more clear, why wouldn't size be expressed this way?
I'm going to run several rows, with the circular lights offset to make a fairly solid rectangle. I would like to get 200 watts worth, fairly tight angle on the lenses for a tight light cone.
Here's a few I've been looking at, could you recommend the best you've seen and post a link please. Thanks.
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High Power 42 SMT RED LED PAR38 Grow Light Budding
Product Information
FEATURES: This PAR38 screws in any standard light socket and it works from 85 volt to 260 volt. No ballasts or transformer is required. It put out 10 times more light than a 5 mm LED.
BENEFITS: This PAR38 screws in any standard light socket and it works from 85 volt to 260 volt. No ballasts or transformer is required. It runs at a warm temperature rather than very hot which is common with most other inefficient plant lights. This more controlled running temperature reduces the need to water so often and keeps rooms with plant lights from getting uncomfortably hot in the summer months requiring additional air conditioning. This state of the art LED panel plant light is extremely energy efficient, paying for itself many times over annually in electricity savings. It saves 50% to 90% in energy consumptioncompared to incandescent bulbs or fluorescent tubes. Wide angle projection insures uniform leaf coverage. This specialty all Red LED grow light panel is designed to allow you to custom tailor the light spectrum for maximum flowering.
This powerful all Red LED Bulb has been scientifically designed to provide large illumination coverage of 2 square feet so it needs to be positioned at approximately 6-8" inches away from the plants. 12 hours per day is all that is necessary for maximum plant health to accelerate the flowering process. The typical white plant lights that run hot, consume excessive electricity wasting money. The purity of these All Red LED lights generates faster bud development, flower blossoming, fruit growth, health, beauty and productivity. These LEDs turn on instantly and can be turned on by hand each day or work well with all standard lamp timers.
We also carry all BLUE LED grow lights which are designed for maximum level photosynthesis food production and accelerated leaf growth.We also have blended Red and Blue LED grow light panels that have both wavelengths that are for accelerating growth and flowering.
Bulb Type
Standard Screw Base
Life time
50,000 Hours
Color
Red (650nm) View Angle
140 Deg
Light output
10 x brighter than 5 mm LED (300 Lumen)
Operating Voltage
90 260 Volt AC
Consumption
15 Watt
Product Diameter
4.75 or 120 mm
Product Length
4.5 or 114mm
Price: $62.00 $52.00
http://www.ledwholesalers.com/store/index.php?act=viewProd&productId=287
.
I haven't been able to find the size light that I want for a test I'm doing, and most light panels have several inches of frame around them which is no good for me either - I need light right to the end. So I'm going to build my own panel with Par38 bulbs and sockets on a stick.
The 38 after PAR is the diameter in inches when divided by 8, which makes perfect sense to me. 38/8 = 4.75". It couldn't be more clear, why wouldn't size be expressed this way?
I'm going to run several rows, with the circular lights offset to make a fairly solid rectangle. I would like to get 200 watts worth, fairly tight angle on the lenses for a tight light cone.
Here's a few I've been looking at, could you recommend the best you've seen and post a link please. Thanks.
.
High Power 42 SMT RED LED PAR38 Grow Light Budding
Product Information
FEATURES: This PAR38 screws in any standard light socket and it works from 85 volt to 260 volt. No ballasts or transformer is required. It put out 10 times more light than a 5 mm LED.
BENEFITS: This PAR38 screws in any standard light socket and it works from 85 volt to 260 volt. No ballasts or transformer is required. It runs at a warm temperature rather than very hot which is common with most other inefficient plant lights. This more controlled running temperature reduces the need to water so often and keeps rooms with plant lights from getting uncomfortably hot in the summer months requiring additional air conditioning. This state of the art LED panel plant light is extremely energy efficient, paying for itself many times over annually in electricity savings. It saves 50% to 90% in energy consumptioncompared to incandescent bulbs or fluorescent tubes. Wide angle projection insures uniform leaf coverage. This specialty all Red LED grow light panel is designed to allow you to custom tailor the light spectrum for maximum flowering.
This powerful all Red LED Bulb has been scientifically designed to provide large illumination coverage of 2 square feet so it needs to be positioned at approximately 6-8" inches away from the plants. 12 hours per day is all that is necessary for maximum plant health to accelerate the flowering process. The typical white plant lights that run hot, consume excessive electricity wasting money. The purity of these All Red LED lights generates faster bud development, flower blossoming, fruit growth, health, beauty and productivity. These LEDs turn on instantly and can be turned on by hand each day or work well with all standard lamp timers.
We also carry all BLUE LED grow lights which are designed for maximum level photosynthesis food production and accelerated leaf growth.We also have blended Red and Blue LED grow light panels that have both wavelengths that are for accelerating growth and flowering.
Bulb Type
Standard Screw Base
Life time
50,000 Hours
Color
Red (650nm) View Angle
140 Deg
Light output
10 x brighter than 5 mm LED (300 Lumen)
Operating Voltage
90 260 Volt AC
Consumption
15 Watt
Product Diameter
4.75 or 120 mm
Product Length
4.5 or 114mm
Price: $62.00 $52.00
http://www.ledwholesalers.com/store/index.php?act=viewProd&productId=287
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