How long should i9t take a mercury vapor light to come on
1966791
My light starts to dimly light up at dusk and slowly gets brighter over a 15 to 20 minute time period until it is completely on.
1966792
if you cover the photo cell(block light from entering the cell), the light comes on in approx 1-2 minutes. uncover the cell and it goes off in aprrox 30-45 seconds. this is what you do to check if light is operational. if light does not come on and there is electric power to light, the bulb is probably burned. if the light stays on, the photo cell needs repalcing. instruction usually accompany the light when purchased.
1966793
It is so automatic that I really do not think about it. However, it starts coming on at dusk or when it really becomes cloudy, and thus is brightly shining when it becomes dark and it is time for it to "do it's thing"
100775
It sounds like you may need to exchange it, 20 minutes isn't one of the time settings. When you push the far right button, the green light goes over the 60 (min), push it again and its over the 120, third time 180, fourth time keeps it on.
1190871
I am not good at judging lengths of time, however it stays on quite a while maybe 15 - 20 seconds. If it goes off as soon asyou get in front of it will come of it the lamp comes back on. I LOVE mine.
1670624
It should either work correctly or not at all. If you have access to an old-style magnetic ballast fluorescent light, point it at the light and take a reading (light on, of course). You should get a reading of 7200 rpm - the light actually turns on and off twice with each cycle of the AC power, so 2 times 60 cycles per second times 60 seconds is 7200. This may also work with mercury and sodium vapor lights, but it will not work with more modern lights with electronic ballasts.
412455
I use a timer on mine. One like I use on lamps when I go away for a week or so.
1758031
The light stays on as long as it detects movement and it is dark. Once movement is no longer detected, it takes about 20 seconds or so to shut off.
2010704
The bulb itself has a mini capacitor in it that adjust the voltage the output is a actually 360 watts so you lose 40 watts of light output in the conversion it goes from hps to metal halide not sure if itd work on mercury vapor if I understood you correctly
463797
The time greatly depends on the brightness of the screen. At a moderate intensity, I'd say 4 - 5 hours.
1241457
it depends on how low the battery is -if only one red light is out -ive never timed it -but its about hour
273518
It takes about 45 seconds. Add another 90 seconds if you have to turn it on first. It stays on for 4 hours before auto off.
2044412
Just turn it on at the time you want it to turn on each day. After the first time, it will do so at the same time each day and be off the other 19 hours.
689773
It's "instant on", but, like all fluorescent lights, it will take a minute or two to obtain full brightness. The colder the temperature, the longer it will take. Note that the narrow base can be a great advantage in fixtures with limited space.
1533079
This depends on how dim you can accept before you declare that the time period is over. The longer it runs the dimmer it gets, running many hours but most of those hours it is not very bright.For example after two hours it will be less than half as bright as it was when first turned on. After 3 hours it might be around 20% of initial brightness and so on. It also depends on which type of batteries you use. High self discharge NiMH will run it longer than alkaline or low self discharge NiMH but with the high self discharge cells you must charge them not very long before you plan to use the light if you want to get full rated capacity out of them. This depends on how dim you can accept before you declare that the time period is over. The longer it runs the dimmer it gets, running many hours but most of those hours it is not very bright.For example after two hours it will be less than half as bright as it was when first turned on. After 3 hours it might be around 20% of initial brightness and so on. It also depends on which type of batteries you use. High self discharge NiMH will run it longer than alkaline or low self discharge NiMH but with the high self discharge cells you must charge them not very long before you plan... » Read More This depends on how dim you can accept before you declare that the time period is over. The longer it runs the dimmer it gets, running many hours but most of those hours it is not very bright.For example after two hours it will be less than half as bright as it was when first turned on. After 3 hours it might be around 20% of initial brightness and so on. It also depends on which type of batteries you use. High self discharge NiMH will run it longer than alkaline or low self discharge NiMH but with the high self discharge cells you must charge them not very long before you plan to use the light if you want to get full rated capacity out of them. « Show Less
1108055
Usually 4-6 hours is enough, but if it is run down completely you might want to leave it on for up to 8 hours. If you have a volt meter with a 6 volt option, you can check it that way.
1482932
Just did a install on a diesel there is a wire to connect to the wait to start light then following that you can set it to start immediately or wait up to 20 seconds for it to start. Works well on my 7.3 idi
978025
For settings, watch the video on the product description page. The total time the light can last on a charge is 30 minutes. If you set it to come on for 25 seconds at a time, it will have enough juice to come on 72 times. If you set it for 30 seconds, it can come on 60 times.
1214068
When you to it on the light will be red. Wait a bit and the green light will be lit. That is the signal to turn the knob to the cup.The very first time it can take a few minutes as the pump primes itself but after that is rather fast each other time