willember Posted March 2, 2004 Share Posted March 2, 2004 What do you think of these bulbs? Ordering Code 42 Watt Spring Lamp, 5100K Light Output 2,800 Lumens Energy Used 42 Watts Life 10,000 Avg. Hours Volts 120 Volts Bulb Shape Spiral Beam Spread Base Medium (Base Types) ` Class and Filament Diameter (in) 2.8 Length (in) 7 Finish Daylight CRI 84 Color Temperature (Kelvin) 5100K Would 2 of these worlk well for a 30 gallon? Link to comment
willember Posted March 2, 2004 Author Share Posted March 2, 2004 I also saw these, but it says not for Recessed or Enclosed Fixtures... Light Output 5,500 Lumens Energy Used 85 Watts Life 10,000 Avg. Hours Volts 120 Volts Bulb Shape Spiral Beam Spread Base Medium (Base Types) ` Class and Filament Diameter (in) 3.35 Length (in) 11.8 Finish Daylight CRI 84 Color Temperature (Kelvin) 5000K Link to comment
jasontatro Posted March 2, 2004 Share Posted March 2, 2004 Kelvin rating is too low. You will have problems with nuisance algae. Link to comment
willember Posted March 2, 2004 Author Share Posted March 2, 2004 I also found this one, but you have to buy 12. Base: Medium Color Rendering Index (CRI): 84 Color Temperature (K): 6500 Current (A): 0.7 Diameter (in): 2.8 Industry Standards: UL and CUL Listed, FCC Part 18, Subpart C Initial Lumens at 25C: 2800 Maximum Overall Length - MOL (in): 7.0 Nominal Voltage (V): 120 Nominal Wattage (W): 42 Link to comment
Von digity Posted March 2, 2004 Share Posted March 2, 2004 They would work, the only thing I don't particularly like is that the bases are so big and will take up space. The previous two would be fine for other applications, like refugiums. *General reef rule = above 6500k. Keep that in mind. Link to comment
jasontatro Posted March 2, 2004 Share Posted March 2, 2004 Better Kelvin rating. You can buy those at Home Depot for about $7 each. They are going to be very yellow though. They will yield good growth, but your corals will probably brown under those lights. I have one of those over my fuge, and my coraline grows like crazy under that light. Link to comment
willember Posted March 2, 2004 Author Share Posted March 2, 2004 Originally posted by Von digity They would work, the only thing I don't particularly like is that the bases are so big and will take up space. The previous two would be fine for other applications, like refugiums. *General reef rule = above 6500k. Keep that in mind. I haven't seen the 42watt 5100K ones at Home depot.. Acutally I haven't seen any of these 3 there. BTW what is CRI? Link to comment
jasontatro Posted March 2, 2004 Share Posted March 2, 2004 The third one is available at Home Depot. Link to comment
1fish2fish Posted March 2, 2004 Share Posted March 2, 2004 I'm looking at ordering this 42 watt 6500 k. http://www.1000bulbs.com/product.php?product=1086 Link to comment
1fish2fish Posted March 2, 2004 Share Posted March 2, 2004 Anyone know how much heat these bulbs throw off? Link to comment
Von digity Posted March 2, 2004 Share Posted March 2, 2004 the HD ones aren't 42 watts. I don't think at least. What makes you say corals will "brown" under 6500k? Link to comment
Von digity Posted March 2, 2004 Share Posted March 2, 2004 Originally posted by willember I haven't seen the 42watt 5100K ones at Home depot.. Acutally I haven't seen any of these 3 there. BTW what is CRI? CRI = color rendering index. Sorry for the confusion, I meant that the 3rd bulb would work, but the other two wouldn't be ideal. Link to comment
jasontatro Posted March 3, 2004 Share Posted March 3, 2004 Originally posted by Von digity What makes you say corals will "brown" under 6500k? Experience Link to comment
jasontatro Posted March 3, 2004 Share Posted March 3, 2004 Color Rendering Index (CRI) is an indication of how a light source affects the appearance of a standardized color chart compared with natural sunlight (under controlled conditions). Obviously, sunlight scores a big 100 CRI, with numbers approaching one-hundred being close to sunlight. For the sake of photosynthesis in aquaria, CRI values of ninety (90) or greater are called for. For the sake of photosynthesis in aquaria, CRI values of ninety (90) or greater are called for. Link to comment
Von digity Posted March 3, 2004 Share Posted March 3, 2004 Originally posted by jasontatro Color Rendering Index (CRI) is an indication of how a light source affects the appearance of a standardized color chart compared with natural sunlight (under controlled conditions). Obviously, sunlight scores a big 100 CRI, with numbers approaching one-hundred being close to sunlight. For the sake of photosynthesis in aquaria, CRI values of ninety (90) or greater are called for. For the sake of photosynthesis in aquaria, CRI values of ninety (90) or greater are called for. nice rip from http://www.wetwebmedia.com/marine/setup/lighting/. You coulda at least linked it so he'd learn more. Sorry in advance for being a prick. Link to comment
jasontatro Posted March 3, 2004 Share Posted March 3, 2004 Sorry... I figured it was better than just writing: CRI = Color Rendering Index Which could be read in the descriptions of the bulbs themselves. Link to comment
Von digity Posted March 3, 2004 Share Posted March 3, 2004 Originally posted by Von digity Sorry in advance for being a prick. It's ok I think we should just start linking that web page whenever someone asks "is this bulb ok, etc..etc.." These questions seem to come up alot. Link to comment
willember Posted March 3, 2004 Author Share Posted March 3, 2004 Originally posted by Von digity nice rip from http://www.wetwebmedia.com/marine/setup/lighting/. You coulda at least linked it so he'd learn more. Sorry in advance for being a prick. Good article, thanks for posting it. BUT when was that written? Link to comment
offsprg01 Posted March 3, 2004 Share Posted March 3, 2004 the 42 watt 6500k's are not at hd. hd has 19 or 20 watt 6500k screwinbulbs. i'vebeen using them for 2 years now. il love them. the yelllow collor is ealily remedied by adding atentic and 10000k lights fro you local lfs. i run one of each on my tank. cost be 40 bucks toal to add these two NO lights. (they are there just to help the yellow color of my 6500k's to be more white/blue) hth Link to comment
fastredponycar Posted March 4, 2004 Share Posted March 4, 2004 just another idea here, how woudl a few of the 100 watt GE Reveal bulbs work? I don't have the cash to put together a MH setup for my 29gal and I can throw a temporary ghetto rigged canopy with 3 of these bulbs together for dirt cheap. 1352 leumens per bulb. Probably not enough but would wattage compensate? what about the GE 42WT4 compact flourecense spiral tube bulb? Link to comment
Whitten Posted March 4, 2004 Share Posted March 4, 2004 Drew if you are looking for a good way to light your tank and at a much cheaper amt. You ought to look into a 96 watt power quad retro fit, or maybe hood from corallife. I saw a 30 cube with that setup, and it provided enough light to make coraline algae thrive, and leathers and other softies work. I have seen the retros on www.hellolights.com, for around 50-70 or the entire hood, which only needs the legs(sparate-7.00) for arounbd 80.00 at www.webaquatics.com. Link to comment
fastredponycar Posted March 4, 2004 Share Posted March 4, 2004 well...i've been tossing around ideas all afternoon and I beleive that I'm going to go with the 24" retrofit setup from hello lights configured like this. twin VHO 10,000K bulbs to start with leaving room in the center of the hood for a to be added later 250w MH bulb. The intial cost should be around $200 for the VHO bulbs, ballast and hood. This would be adequate for now (because I'm not going to be adding any coral yet, just fish) and then later whne I get more money, I can add the MH bulb and a fan and then be able to put in corals and stuff. If I did it all at once, it'd run me about $400 which I ain't got. Link to comment
jasontatro Posted March 5, 2004 Share Posted March 5, 2004 If youre not going to be keeping coral, why bother spending the money in the first place. Fish will do just fine under NO flourescents. Why not just save the money that you were going to spend on VHO's until you have enough to do the MH. Just my $.02 Link to comment
fastredponycar Posted March 5, 2004 Share Posted March 5, 2004 good point. yesterday I talked with a couple other people and I orderd a DIY CF kit with ballast, wiring harness, etc with twin 65w bulbs (one standard 10,000K and one 50/50 actinite03 10,000K bulb). I got that with a 24" reflector mounting plate from hello-lights for under $160. I figure it'll be a good start and the way the hood is going to be constructed, I'll have room to add either one or two MH bulbs between the CF's in the next few months. Link to comment
Whitten Posted March 5, 2004 Share Posted March 5, 2004 Sounds great Drew, and that is exactly what I was going to suggest you do. Link to comment
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