if I run this bulb at 50 percent, will it lenghthen its life span?
201253
No, it will actually decrease the life span of the bulb. When the bulb is not used at the recommended wattage, ot also does not put out the full spectrum that the bulb is rated at. If you intend to only run the bulb at 50%, i would recommend just using a 400 watt bulb with your 600 watt ballast.
201254
No, it will actually decrease the life span of the bulb. When the bulb is not used at the recommended wattage, ot also does not put out the full spectrum that the bulb is rated at.If you intend to only run the bulb at 50%, i would recommend just using a 400 watt bulb with your 600 watt ballast.
201255
50% 100% dose'nt matter because that bulb only lasted 95 days for a few $$ more you'll find better that will last much longer.........shop around
1474631
i don't think they are the same size bulbs, plus even at 50% (the lowest setting on the balast) your looking at running at 500 watts.
889723
They say 50,000 hours, which if you burn it an average of 18 hours a day, 365 days a year, it will work for ~7.6 years. There are no replacement bulbs that i have seen.
1637823
This bulb should work. It's fairly easy to install also, just take your time.
1991078
Hi Ronnie, the lifespan of this bulb is estimated at 50,000 hours. This includes lumen depreciation and other factors. Most high quality LED bulbs are rated by Energy Star at 30,000 to 35,000. Thanks!
1113006
I doubt it, unless just one of the bulbs is not coming on, specifically the one farthest from the battery. I was having a problem where the light farthest from the battery would come on some times and other times it would not, but the one closest to the battery came on 100% of the time. Better to look at your main power connections, try feeding power straight from the battery and bypass any other wiring to see if that works.
953544
2 lamps I originally bought lasted decades literally. It seems life is based on # of on/off cycles as first that failed was used many more times than second one.Condenser in the lamp failed before the bulb. Condenser creates the charge needed to "start" that type bulb. As with all lamps "life" depends on combination of on/off cycles more than running time "on" because each "on" is a literal SURGE OF ENERGY... I saved the bulb as it was still 'good' ...hope that hekps
2118088
The box says no, but I have several in a rather large enclosed outdoor fixture. Heat build up may ultimately shorten the lifespan of the bulb but they have been up and running for 4 - 5 hr per day for about 4 months without a problem. The fact it has been winter has probably helped things.
820568
I don't have the equipment to test for that but if there is any electricity used when the bulb is off it would be mininmal. The bulb uses very little electricity when it is on.
1122225
It will have much lower current draw, be brighter and fit. Bulb life is also in the thousands of hours. One of my best changes.
1367607
Should be fine... But it is only 100 watts so can drive two 50 watt bulbs maximum.
288323
There is really no way to calculate the expected life. It depends on the type of fixture and, in the case of strings of bulbs as in landscape lighting, the distance from the transformer. Lamps closer to the transformer will not last as long as those further away due to higher voltage and the initial surge when they turn on.
64094
Yes. We have had no problems with it. Have bought the same bulb in the past.
1532714
It depends on the height of the bulb, I am using a compact fluorescent that reaches almost to the top. The light spreads out over about 45 degrees.
187997
I have had one of the philips LED bulbs inside a fully enclosed fixture for about six months now (I believe it is 429258). It will surely shorten the life, but it remains to be seen if it just shortens it from 7 years to 3.5 years, or if it is about to give up the ghost any day now.
558915
I don't know. I should research it as I don't care for the wattage. My bulb will probably last a long time because I don't like it. If you find one please post!
552068
Hi, the quality of this bulbs is very, very bad. Was installed in my house 1 months ago and the 50% bulbs was burned out