T5 1-Bulb High Output 24-Watt Fluorescent Grow Light Fixture

Light your kitchen, bathrooms and more with the Philips Linear Fluorescent 10-Watt T5 soft white light bulb. It makes soft white light and creates a comfortable, pleasant atmosphere. Philips T5 soft white light bulbs last at least three years.

Going to a two lamp T5 actually reduces the wattage and results in MORE light.

Philips linear fluorescent Energy Advantage 25-Watt 46 in. T5 neutral light bulb is ideal for use in offices, or anywhere in your home where a balanced, pleasant light is desired. It provides general room lighting and creates a comfortable atmosphere.

54 Watt - T5 - 5400K Blue - 5000 Lumens - Grow Light

T5 Watt-Miser™ lamps are energy saving triphosphor fluorescent lamps with 16mm outer diameter for general T5 lighting applications. If you decide on T5 grow lights instead of HPS, you'll lose out in lumens per watt, but will have a cooler grow room with less space taken up by your lighting system. You'll also spend less money on energy costs in the longer run, even though T5 bulbs are more expensive than HPS upfront. T5 bulbs last longer and degrade slower.

Light Bulbs Etc, Inc.: 28 Watt T5 Fluorescent Tubes

Fluorescent lights are ideal for plants with low to medium light requirements, like African violets. They are also good for starting vegetables indoors. These lights typically come in long, tubelike bulbs in a range of sizes including T5, T8 and T12.

The narrower the bulb, the more efficient and brighter it is, due to the smaller surface area. In addition to this, fluorescent bulbs use 75 percent less energy than incandescent lights. So, for example, a 25-watt fluorescent emits about as much light as a 100-watt incandescent light bulb. T5 systems put out about double the amount of light per tube as standard fluorescent lights. They are 6500 Kelvin and also full spectrum, which is very intense light.

T5HO 47W UltraStart Watt-Miser System - GE Lighting


While the standard T5 and T5 HO are the same diameter and length, the 4-ft T5 is rated at 2,900 lumens, similar to the lumen per watt output of a T8 lamp. On the other hand, the 4-ft T5 HO lamp is rated as high as 5,000 lumens, offering twice the maintained light output of a T8 lamp. This means that on some projects a designer can use fewer fluorescent fixtures or lamps, thus providing certain savings on installation and long-term maintenance.One result of enclosing a smaller lamp with a relatively high output in a smaller fixture is heat — and lots of it. For that reason, the T5 lamp provides peak light output at 35°C (95°F) air temperature, whereas the T8 and the T12 lamp provide peak light output at a 25°C (77°F) ambient air temperature. Thus, in an indirect luminaire, where there is little or no air circulation, the T5 lamp can have a higher lumens-per-Watt efficacy than a T8 lamp of about the same wattage because of this thermal characteristic.As mentioned above, with power ratings of 24, 39, 54, and 80, the T5 HO lamp produces as much as twice the lumen output of the standard T5 lamp, and nearly twice the light output of a T8 or T12 system. Each HO lamp requires its own dedicated ballast model. Providing from 83 to 94 lumens per watt, the T5 HO lamps are about 10% to 15% less efficacious than standard T5 lamps and as much as 8% less efficacious than a T8 system. A number of T5 HO ballasts have features, in addition to a dimming function. For example, one model can operate one, two, three, or four F54 lamps, while allowing remote mounting and a high-low switching option.As mentioned above, with power ratings of 24, 39, 54, and 80, the T5 HO lamp produces as much as twice the lumen output of the standard T5 lamp, and nearly twice the light output of a T8 or T12 system. Each HO lamp requires its own dedicated ballast model. Providing from 83 to 94 lumens per watt, the T5 HO lamps are about 10% to 15% less efficacious than standard T5 lamps and as much as 8% less efficacious than a T8 system. A number of T5 HO ballasts have features, in addition to a dimming function. For example, one model can operate one, two, three, or four F54 lamps, while allowing remote mounting and a high-low switching option.