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Old 12-24-2007, 09:40 AM   #5 (permalink)
Mr. Tang
Insightful Reefer
 
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Join Date: Dec 2006
Location: wake forest north carolina
Posts: 204
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Mr. Tang is on a distinguished road
How about this led bulb???


Super Bright LEDs, Inc - St. Louis, Missouri
tel:314.972.6200 fax:314.972.6202
superbrightleds.comPart Number: RL5-W10015 Super-White LED (GaN/InGaN)
absolute maximum ratings: (TA=25°C)
PARAMETER SYMBOL RATING UNIT
Power Dissipation PD 120 mW
Continuous Forward Current IF 30 mA
Peak Forward Current (1/10th duty cycle, 0.1ms pulse width) IFM 70 mA
Reverse Voltage VR 5 V
Operating Temperature TA -25~+80 °C
Storage Temperature TSTG -30~+100 °C
Reverse Current (VR=5V) IR 100 µa
Lead Soldering Temperature (3mm from body) 260C (for 3 seconds)

optoelectric characteristics:
PARAMETER SYMBOL MAX TYP UNIT TEST
View Angle of Half Power 2ø1/2 15 Degree
Forward Voltage VF 4.0 3.4 V IF=20mA
Peak Emission Wavelength ÿ P x=.281;y=.287 nm IF=20mA
Luminous Intensity IV 10000 mcd IF=20mA
Absolute Irradiance 9.08667E+3 uW IF=20mA

This bulb has a Lum reading of 10,000 and a reading of 452nm. I think these match that of a typical 250watt metal halide bulb. I could be wrong. Someone prove me wrong!!!!!

Mr. Tang
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"Hello my name is Mr. Tang and I'm a Reefoholic!"

120 gallon mixed reef Tank, 90 gallon Frag/grow out tank, and 100 gallon sump &
The birth of the 150
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