Use two of the 24 watt bars (or the larger 42 watt, 4 foot bars to cover twice the space) instead of one or use 125 watt to 250 watt fluorescent bulbs. If I were you I’d get some small 300w led fixtures or go with the HPS. Using a dimmer with a standard CFL is ineffective and can shorten bulb life and void the warranty. The luminous efficacy of a typical CFL is 50–70 lumens per watt (lm/W) and that of a typical incandescent lamp is 10–17 lm/W. Recently I had 4-5 months of growing under hid lights. LED’s, however, are the most effective of all, with a whopping 72 lumens per watt. Outdoor conditions are mimicked with varying colour, temperatures and spectral outputs from the grow light, as well as varying the intensity of the lamps. Such CFLs are unsuitable for use in pendant lamps and especially unsuitable for recessed light fixtures. For the average user, UV radiation from indoor lights does not appear to be a concern. So, 450/250, equals a ratio of 1.8 PPFD per 1 Watt of light. Critical + 100 Watt CFL grow buds – fully trimmed. The first fluorescent light bulb and fixture were displayed to the general public at the 1939 New York World's Fair. In areas where coal is not used to produce energy, the emissions would be less for both types of bulb. Well I just harvested my CFL grow, I got almost 200 grams wet from one plant (175 from what I just chopped and still have 3 branches to go), using a little over 300 watts of CFLs. Incandescents reach full brightness a fraction of a second after being switched on. Like CFLs, the light output degrades as the bulb ages though somewhat more slowly. For example, most 75 W bulbs – irrespective of brand – put out about the same amount light. because if it is for the whole grow then I am really close at 336g under 400w there abouts...one plant will be 2.4 and the next might be 3.5 or something, but on average 3 o a plant.. sorry to revive this fairly old thread but i think 38g from jus over 110w of CFLs is an exceptional yield already! A notional temperature, the correlated color temperature, the temperature of a black body which emits light of a hue which to human color perception most closely matches the light from the lamp, is assigned. I'm happy with that. To fit enough phosphor coated area within the approximate overall dimensions of an incandescent lamp, standard shapes of CFL tube are a helix with one or more turns, multiple parallel tubes, circular arc, or a butterfly. what i have found is normal cfls are about 50-70 lumens per watt, while T5 lights are more. White Widow. They were grown from clones put straight to 12/12. 4.7 out of 5 stars 95. CCFLs rely on the discharge itself to heat the electrodes which operate at similar temperatures to 'hot cathode' CFLs. Used led and cfl, and hid is vastly superior in terms of yield, speed and quality of bud. Light Systems elegantly puts it, In the European Union, CFLs are one of many products subject to the WEEE recycling scheme. Only the bud shape and its main content is the yield result you should measure. Light Bulbs: HPS, MH, CFL, and HID. There are two types of dimmable CFL on the market: Standard dimmable CFLs, and "switch-dimmable" CFLs. In the United States, the Program for the Evaluation and Analysis of Residential Lighting (PEARL) was created to be a watchdog program. Use mh into first 3 weeks of flowering to help minimise stretch, then hps. White Widow. [85] Below the 20% limit, the lamp may remain at 20% or flicker or the starter circuitry may stop and restart. You need to be looking at a 250 watt or 400 watt hid. 16 lumens per watt. There may not be completely accurate and you should calculate them before buying any light bulb. So you did the research and finished picking your perfect grow tent. Not that you couldn't get a decent harvest of 2-4 oz off just 250w. Yield under High-Intensity Discharge or HID Lights. That's a bit silly if gram per watt dosent take veg time in to consideration as even adding a extra 10 days on your veg time will double your yield is 4-5 weeks veg a good time for yields I know the longer the better but I've got to consider harvest time as well lol I'm going to start with about 13 plants then build it up to 20 to do month cycles with cloning so it's quicker seeds … [18] In early 2016, General Electric announced the phase out of CFL production in the US. [44], While the purchase price of a CFL is typically 3–10 times greater than that of an equivalent incandescent lamp, a CFL lasts 8–15 times longer and uses two-thirds to three-quarters less energy. This can vary depending on the lighting system you use. That is a beautiful plant though up top looks great. [29] CFLs produce less light later in their lives than when they are new. In Winnipeg, Canada, it was estimated that CFLs would only generate 17% savings in energy compared to incandescent bulbs, as opposed to the 75% savings that could have been expected without space heating considerations. The US Energy Star program suggests that fluorescent lamps be left on when leaving a room for less than 15 minutes to mitigate this problem. per plant. [25][26][27] However, the actual lifetime of any lamp depends on many factors, including operating voltage, manufacturing defects, exposure to voltage spikes, mechanical shock, frequency of cycling on and off, lamp orientation, and ambient operating temperature, among other factors. Expect to obtain 0.3 grams per watt (roughly 12 grams per standard light). Note: Some brands of 60-watt equivalent CFLs still do not seem to give off as much light as a 60watt incandescent bulb. However, ... the minimum recommended wattage per square ft of space is 50w. [83] In July 2008 the U.S. EPA published a data sheet stating that the net system emission of mercury for CFL lighting was lower than for incandescent lighting of comparable lumen output. [6] The Cooper Hewitt lamps were used for photographic studios and industries.[6]. [59][60] The use of CFLs in homes has no appreciable effect on power quality, but significant quantities of them in a large facility can have an impact. The luminous efficacy of lamps is the number of lumens produced for each watt of electrical power used. The color temperature of a light source is the temperature of a black body that has the same chromaticity (i.e. Ballast failures are usually due to overheating and may be accompanied by discoloration or distortion of the ballast enclosure, odors, or smoke. Hydro growers could expect yields on the higher end to be around 1.2 grams per watt (or 720 grams of weed per 600 watts from an HPS lamp). The 42 watt, on the other hand, get very hot. I'm not sure if you know saldaw, but just to make sure MH is used for Veg, HPS is used for flowering if you aren't using florescent light. Critical + 100 Watt CFL grow buds – fully trimmed. As for the efficiency ratings the shape doesn’t matter: almost always the wattage is the main thing to look and and calculate the lumen per watt ratios. per watt. Among HPS lamps you have a choice between a single 100-watt lamp which uses a total of about 120-watts and emits about 8,800 lumens(73 lumens per watt) or a 150-watt lamp, which uses about 180 watts and emits almost double that-15,800 lumens (87 lumens per watt). That's more than 4.5 times as efficient as the GE incandescent light bulb. Can CFLs interfere with electronic equipment? The lamps use a tube which is curved or folded to fit into the space of an incandescent bulb, and a compact electronic ballast in the base of the lamp. You’ll get a better yield per plant with a smaller number of plants per lamp, and four plants is a whole lot easier to manage than sixteen. A compact fluorescent lamp (CFL), also called compact fluorescent light, energy-saving light and compact fluorescent tube, is a fluorescent lamp designed to replace an incandescent light bulb; some types fit into light fixtures designed for incandescent bulbs. Color names used for modern CFLs and other tri-phosphor lamps vary between manufacturers, unlike the standardized names used with older halophosphate fluorescent lamps. CFLs designed for use in such fixtures are available. By the end of their lives, CFLs can be expected to produce 70–80% of their original light output. "Compact Fluorescent Light Bulbs Key Product Criteria : ENERGY STAR", "Coming to Terms with Energy Efficiency and the Environment", "Why does my compact fluorescent light bulb flicker or appear dim when I first turn it on? [20] A CFL will thrive in areas that have good airflow, such as in a table lamp.[22]. The incremental capital investment of $2 per fixture is typically paid back in about one month. Savings are greater and payback periods shorter in regions with higher electric rates and, to a lesser extent, also in regions with higher than U.S. average cooling requirements. Non-integrated CFLs have the ballast permanently installed in the luminaire, and usually only the fluorescent tube is changed at its end of life. The incoming AC current is first rectified to DC, then converted to high frequency AC by the transistors, connected as a resonant series DC to AC inverter. The usual 1000 watt grow room yield would be 1.5lbs from a 4×4 grow area. How much light is enough to provide excellent growth from my plants? of Energy, Greening Federal Facilities, 2nd Edition, ', Ivanco, M., Karney, B.W., Waher, K.J. Now use cfl for seedlings for a few days then under 150w mh. I find I get around 1-2 ounces per 100watts. JavaScript is disabled. In terms of yield and lumen, HIDs are more efficient than fluorescents. The voltage of CCFLs is about 5 times higher than CFLs, and the current is about 10 times lower. MIXJOY 1000 Watt Double Ended Grow Light System Kits, 2100K Super Lumens DE HPS Bulb, Open Reflector with 120-240V Digital Dimmable Ballast and 1 Pair Rope Ratchet Hanger for Indoor Plant Growing. I have a small high output T5 from HTGsupply 110watts and it gives off 10,000 lumens @ 92 lumens per watt so T5's are definitely the way to go! Seasoned growers can get as much as 100 grams. I yielded between 1/4 to 3/4 oz per plant. That’s true for cannabis as well. Keeping the impact of CO2 in mind, there are some numbers that you can expect when growing with CFL and HPS lighting: Imperial. As of 2009[update], CFLs turn on within a second, but many still take time to achieve full brightness. The lesser the amount of power required, the more efficient a light bulb is. Exchanging ILs for efficient CFLs on a global scale would achieve annual CO2 reductions of 230 Mt (million tons), more than the combined yearly CO2 emissions of the Netherlands and Portugal. If someone can get more than 1 gram per watt than show us and we can go from there. Therefore you must measure your area to find out how much light you need to grow your plants. ... because cfl bulbs for growing weed will be slightly different. [76], When the base of the bulb is not made to be flame-retardant, as required in the voluntary standard for CFLs, overheating of the electrical components in the bulb may create a fire hazard.[77]. [97] Those CFLs with a recent Energy Star certification start in less than one second and do not flicker. CFLs have two main components: a magnetic or electronic ballast and a gas-filled tube (also called bulb or burner). It is the ratio of luminous flux to power, measured in lumens per watt in the International System of Units (SI). CCFLs were initially used for document scanners and also for back-lighting LCD displays, and later manufactured for use as lamps. [90] Home-supply chain stores make free CFL recycling widely available.[91]. 70 lumens per watt. 42 W CFL buds give off 2700 lumens, therefore, you just need two of these to maximize light and to get the best yield per bud. In the past, if you wanted a brighter bulb you’d simply choose one with more Watts. This is counter to most other light sources (such as incandescents) where color gets redder as the light source gets dimmer. [51] The lamps are internally protected and are meant to fail safely at the end of their lives. CFL bulbs can help you cut quite a bit of energy usage in your home, but you can't measure brightness by looking at wattage levels, like you can with incandescent bulbs. Note that it's only with a GOOD light that you'll even get that. Integrated CFLs work well in many standard incandescent light fixtures, reducing the cost of converting to fluorescent. Basically, if a strain flowers really fast and stays short you can’t expect more than 20 or 30 grams from it. [5], The parent to the modern fluorescent lamp was invented in the late 1890s by Peter Cooper Hewitt. LEDs are barely ready for prime time -- "truth about LEDS" notwithstanding. The latter use a standard light switch, and the on-board electronics chooses the light output level based on the number of times the switch is turned on and off quickly. CCFLs still have a significant warm up time (though modern electrode materials have mitigated this somewhat) and suffer similar sputtering of the electrodes when switched on cold which shortens their life. Get it as soon as Thu, Feb 18. The graph assumes that CFLs last an average of 8,000 hours regardless of manufacturer and premature breakage. [85], Special handling instructions for breakage are not printed on the packaging of household CFL bulbs in many countries. Many municipalities are purchasing such machines. An average-to-good grow yields about 0.5 grams/watt. White LEDs have advanced to the stage where they are a good substitute for the compact fluorescent lamp. This makes them great starter lights for growers on a budget! In the United States, most states have adopted and currently implement the federal Universal Waste Rule (UWR). The adapter consists of a regular bulb screw, the ballast itself and a clip for the lamp's connector. In many countries, governments have banned the disposal of CFLs together with regular garbage. If you use a 600-watt HPS lamp and have four plants, you could expect up to 5.0z per plant. Think of your yield this way. Cannabis plants require anywhere from 5000 to 10000 lumens per square feet of growth. No cellular damage was observed following exposure to incandescent light of equivalent intensity. Vegged for 5 - 6 weeks got them really big (not a good idea with cfls) and then flowered. Talking about yield, it will net you a pleasant amount even within a small area like 4×4. CFL lights take longer to become fully lit and can’t be dimmed, so they’re not very energy efficient. CFL is an abbreviation of the words Compact Fluorescent Lamps ... A standard LED fixture can generate between 90 and 120 lumens per watt. Color temperature can be indicated in kelvins or mireds (1 million divided by the color temperature in kelvins). This radiation could aggravate symptoms in people who already suffer skin conditions that make them exceptionally sensitive to light. A 100 watt, 400 watt equivalent is twenty-five. For example, Sylvania's Daylight CFLs have a color temperature of 3500 K, while most other lamps called daylight have color temperatures of at least 5000 K. In United States, Energy Star's specification provides a set of named color temperatures for certified luminaries. Non-integrated CFLs can also be installed to a conventional light fixture using an adapter containing a built-in magnetic ballast. [8] Although the design met its goals, it would have cost GE about $25 million to build new factories to produce the lamps, and thus the invention was shelved. An energy efficient grow is not only environmentally friendly, it also keeps both the power bill down. At closer distances, comparisons show that CFLs emit less UVA (long wavelength) radiation than incandescent light bulbs. That's more than 4.5 times as efficient as the GE incandescent light bulb. ", CPSC, Teng Fei Trading Inc. There are various aid agency initiatives in developing countries to replace kerosene lamps, which have associated health and safety hazards, with CFLs powered by batteries, solar panels or wind generators.[94].