And what is the difference from MH and HPS bulbs?
1607801
Metal halide bulbs mimic the sun during spring and early summer months. Hps bulbs are a different spectrum and mimic the sun at the end of summer. More red than the blue and white of the metal halide. Depending I. What you're growing sometimes combining the 2 really helps plant growth
1607802
The MH is for vegetative growth then switch to HPS for the flowering stage.
1607803
Probably shouldn't be buying this if u don't know the difference in the bulbs...but just to inform u..mh bulbs are a bright white light used for vegetation period of plants and his is a yellowish light used for the flowering period of plants..
1607804
Metal halide is a different color spectrum, used for vegitative growth. High pressure sodium is generally used for flowering part of the life cycle....basically they imitate the sun during different times of the year.
1607805
MH is for vegetative growth.... HPS is for plants to go into the flowering stage
1607806
The MH light is very white in appearance and high in the blue spectrum. The HPS has a yellow/orange glow. The HPS has more light output than the MH.
1803150
I went from an H11 bulb to this H9 bulb. I don't have experience with HIR bulbs, but it is brighter then the H11. Not hugely brighter, just a little more power.
1320605
I have not tried this but have researched it. Apparently You can run MH in a HPS fixture but not the other way around. The HPS ballast contains an igniter. In switchable ballasts this is turned off for metal halide. So it should work although the igniter may shorten your bulb life. They also make MH conversion bulbs that will run in a MH ballast but they are expensive and I am not sure they make them in 150W
1090182
yes just dont put in higer watt bulb lower is ok. ballast works both mhl and hps
704785
The MR16 bulb is a bit larger than the MR11. 2 inches in diameter verses 1 and 3/8 inches for the MR11 also a bit deeper. The plug is the same and they are also 12V. LEDs in my experience are not as bright. Hope this helps
2032261
Hey BenjaminThere is a side-by-side comparison of the various lamps Philips makes at the end of the listing for the HF3470. It looks like it boils down to this: The HF3470 has a replaceable bulb (what that entails, I couldn't tell you. It looks like the HF3520 must be a "forever" bulb). The HF 3470 has a "sunrise simulation" which I dig, and helps me wake up more naturally, which is what I bought the product for in the first place, so that was important to me, but is it for you? Lastly, the HF3470 has 2 sound simulations whereas the HF3520 has 5. I wouldn't call that particular facet a deal breaker. It looks to boil down to the idea of the sunrise simulation and is that worth roughly $60 for you? Happy shopping. Hey BenjaminThere is a side-by-side comparison of the various lamps Philips makes at the end of the listing for the HF3470. It looks like it boils down to this: The HF3470 has a replaceable bulb (what that entails, I couldn't tell you. It looks like the HF3520 must be a "forever" bulb). The HF 3470 has a "sunrise simulation" which I dig, and helps me wake up more naturally, which is what I bought the product for in the first place, so that was important to me, but is it for you? Lastly, the HF3470 has 2 sound simulations whereas the HF3520 has 5. I wouldn't call... » Read More Hey BenjaminThere is a side-by-side comparison of the various lamps Philips makes at the end of the listing for the HF3470. It looks like it boils down to this: The HF3470 has a replaceable bulb (what that entails, I couldn't tell you. It looks like the HF3520 must be a "forever" bulb). The HF 3470 has a "sunrise simulation" which I dig, and helps me wake up more naturally, which is what I bought the product for in the first place, so that was important to me, but is it for you? Lastly, the HF3470 has 2 sound simulations whereas the HF3520 has 5. I wouldn't call that particular facet a deal breaker. It looks to boil down to the idea of the sunrise simulation and is that worth roughly $60 for you? Happy shopping. « Show Less
304461
It is "equivalent" to a regular 60 watt bulb. The big difference to me is the quality of the light. It is more like daylight instead of the brownish light that you get from most of these kinds of bulbs. It is much brighter. The difference to me is like night and day.
610956
The low-beam uses an H7 bulb and the high-beam uses an H1. Search that with 8k and go with the kenson Conversion kit. Should be what you need to get set up right
1664443
That is exactly what an H11 bulb is - low beam only. The H9 would be a high beam only bulb. H13 would be dual-filament (low/high).
639055
sorry, I have both kinds and I can't remember which they use. I got them for my greenhouse. I'm pretty sure they were T8 because those were the types of bulbs I had to buy but I can't guarantee it. It seems like the bulb type was included in the product description. The lights are very lightweight and come completely assembled which is nice.
1090181
Yes any digital ballast should. This kit came with the option to get a MH with it if I wanted. The HPS bulb that came with the kit seems in great condition but I am still going to buy a bulb from a third party company that is known for a quality bulbs. ( I would never start a grow without a replacement bulb)
1131893
Hell if i know. The only thing i do know is that HL stands for high lumen & DS stands for dual switch.
646375
They use the typical 55w halogen H-3 bulb. I was going to upgrade to a 100w bulb but this was so bright that I didn't need to.
1679775
h7 bulbs for the low beems. I would recommend getting the balasts for high and low beem. I did not. doh! don't know what the high beem bulb is.
2268154
No. LED lights and HID lights (HPS for example) emit a completely different UV spectrum. When flowering, HPS is fine by itself-as long as it is powerful enough.
2176220
This bulb will not work with an electronic ballast, only a magnetic HPS. This is a conversion bulb from HPS to MH.
1463986
It's an H11 bulb. They make aftermarket bulbs that are like HID too. If you want a possibly cheaper and quicker alternative.