أنبوب LED
What should I check before buying T8 LED tube lights?
LOWCLED supplies T8 LED tube lights in 0.6m-1.5m, 100-130 lm/W for offices, car parks and retrofits. Every range ships with datasheets, IES photometric files, OEM/ODM branding and a 3-7 year warranty (3-5 years indoor, 5-7 years outdoor). Send the target lux, mounting height and site layout and our engineers return a lighting plan.
بيانات القياس الضوئي: فهرس ملفات IES المقاسة فعلياً · 2027 catalogue
Source: LOWCLED in-house specification tables and datasheets, updated 2026-11.
LOWCLED makes LED tubes in T5 and T8, 600 mm to 1500 mm, 9W to 30W, in eight build variants: T5 split and T5 integrated, T8 glass, T8 aluminium-PC, T8 integrated, T8 with clip, nano T8, and a 170 lm/W T6/T5 high-output range. Output runs from 900 lm to 4,680 lm, CRI above 80, PF above 0.9, on 90-265V AC. CE, RoHS; five-year warranty on the luminaire ranges.
On this page: T5, T8 and the build variants · fluorescent tube replacement · length, power and output · wiring & voltage · FAQ
أنبوب LED Light Manufacturer - T8 Tubes Wholesale from the Factory
Lowcled manufactures T8 LED tube lights in 0.6m, 0.9m, 1.2m and 1.5m lengths for offices, warehouses, workshops and car parks. As a tube light factory in Shenzhen we supply standard T8 tubes as well as tri-proof vapor-tight tube versions, supporting both single-ended and double-ended wiring with frosted or clear covers.
- Wholesale supply: factory-direct tube light pricing, flexible MOQ, mixed length loading for container orders.
- OEM options: private-label packaging, custom CCT (4000K/6500K standard), driver brands on request.
- Project support: IES files, Dialux lighting design and compliance documents for tenders.
Request a tube light quotation - our sales engineers reply with pricing, samples and photometric data within one working day.
The tube is the same; the housing is not
Every variant here uses SMD2835 LEDs on the same 600, 1200 and 1500 mm lengths, and they differ in the body and the driver arrangement. Glass T8 has a glass tube and looks like the fluorescent it replaces, which matters in a visible installation. Aluminium-PC T8 has an aluminium spine and a PC diffuser for better heat spreading and a longer life. Nano T8 uses a nano-diffuser that scatters the light more evenly and hides the LED dots.
T5 integrated and T8 integrated carry the driver inside the tube and run directly on mains, so a fitting with a magnetic ballast can be converted by removing the ballast. T5 split and the clip version use an external or clip-on driver. The 170 lm/W T6/T5 range is the high-output option for projects where the circuit capacity or the fixture count is fixed.
| Variant | Type | Power | Output | Driver | Note |
|---|---|---|---|---|---|
| T5 split (FT) | T5 | 9W / 18W / 24W | 950 / 1,900 / 2,300 lm | external | 600 / 1200 / 1500 mm |
| T5 integrated (YT) | T5 | 9W / 18W / 24W | 950 / 1,900 / 2,500 lm | internal | mains directly |
| T8 glass (G02) | T8 | 9W / 12W / 18W | 950 / 1,300 / 1,900 lm | internal | 600 / 900 / 1200 mm |
| T8 aluminium-PC (A02) | T8 | 9W / 18W / 22W | 950 / 1,900 / 2,300 lm | internal | better heat spreading |
| T8 integrated (H-IN) | T8 | 9W / 18W / 24W | 950 / 1,900 / 2,500 lm | internal | replaces ballast fitting |
| T8 clip (K) | T8 | 9W / 18W / 22W | 900 / 1,800 / 2,200 lm | clip-on | fast retrofit |
| Nano T8 (N) | T8 | 9W / 18W / 22W | quoted per model | internal | nano diffuser, even light |
| T6 / T5 170 lm/W (T01) | T6 / T5 | 10W / 20W / 30W | 1,600 / 3,200 / quoted | internal | high output, 175-265V |
All variants: SMD2835, CRI >80, PF >0.9, AC 90-265V (T01: 175-265V), CCT 2800-6500K.
What replaces a 36W or 58W fluorescent tube
The industry rule is that a 36W T8 fluorescent tube, which draws about 45W with its magnetic ballast and delivers roughly 3,000 lm when new, is replaced by an 18W LED tube at 1,900 lm — and that a 25W replaces a 58W tube. The numbers are lower because the fluorescent figure includes a depreciation allowance that an LED tube does not need. Where the client wants the same light level as the day the fluorescent was installed, one size up is the safe choice.
Two practical points decide the order. First, whether the existing fitting has a magnetic or electronic ballast — on a magnetic ballast the ballast is removed and the tube runs on mains; on an electronic ballast the tube must be compatible or the ballast is also removed. Second, whether the fitting is single-ended or double-ended: the wiring instruction differs and getting it wrong is the most common cause of a failed retrofit.
| Existing fluorescent tube | System lumens | LED tube replacement | Power saved | Comment |
|---|---|---|---|---|
| T8 18W / 600 mm | 1,350 lm | 9W (950 lm) | about 55% | cabinet, under-shelf |
| T8 36W / 1200 mm | 3,000 lm | 18W (1,900 lm) | about 60% | the most common retrofit |
| T8 58W / 1500 mm | 4,900 lm | 30W T6 (4,800 lm) | about 50% | high ceiling, plant room |
| T5 28W / 1200 mm | 2,600 lm | 18W T5 (1,900 lm) | about 45% | office ceiling grid |
| T5 35W / 1500 mm | 3,300 lm | 24W T5 (2,500 lm) | about 45% | retail, display |
Fluorescent figures include ballast loss and a depreciation allowance. Confirm the ballast type before ordering integrated tubes.
Length, power and output in one table
The three standard lengths are 600 mm (2 ft), 1200 mm (4 ft) and 1500 mm (5 ft), plus 900 mm in the glass T8 range. Output scales with length because the LED count scales with length: about 48 LEDs at 600 mm, 96 at 1200 mm and 120 at 1500 mm. A 900 mm tube sits between the first two at 72 LEDs.
| Length | Typical power | Typical output | LED count | Fits |
|---|---|---|---|---|
| 600 mm / 2 ft | 9W | 900-950 lm | 48 | 2 x 18W fluorescent fitting |
| 900 mm / 3 ft | 12W | 1,300 lm | 67-72 | 3 ft fitting (glass T8 only) |
| 1200 mm / 4 ft | 18W | 1,800-1,900 lm | 96 | 36W fluorescent fitting |
| 1500 mm / 5 ft | 22-24W | 2,300-2,500 lm | 120 | 58W fluorescent fitting |
| 1500 mm / 5 ft high output | 30W | 4,800 lm | 276 | high-ceiling industrial |
Output at 4000K. T6 high-output range runs on 175-265V rather than 90-265V — check the site voltage before specifying it on a 110V circuit.
Wiring, ballast removal and voltage
An integrated LED tube replaces the fluorescent tube and the ballast together. On a magnetic ballast installation the ballast and the starter are removed and the tube is fed from the mains at one end; on an electronic ballast installation the ballast is also removed unless the tube is specifically rated for that ballast. The tube is double-ended on the standard ranges, so the live and neutral go to opposite ends and the two pins at each end are bridged in the holder.
Voltage is 90-265V AC on the standard range, which covers 120V and 230V sites. The 170 lm/W T6 range runs on 175-265V and should not be specified on a 110V circuit. Non-dimmable is standard; dimmable tubes are quoted per project.
Frequently asked questions
Which LED tube replaces a 36W T8 fluorescent?
An 18W, 1200 mm LED tube at about 1,900 lm. That is a 60% cut in power for a light level that is close to the original when the fluorescent was new. If the installation was already dim, choose the 22W aluminium-PC version instead.
Do I have to remove the ballast?
Yes for the integrated tubes on a magnetic ballast — the ballast and starter are removed and the tube runs on mains. On an electronic ballast, remove it as well unless the tube is rated for that ballast. Our wiring diagram is supplied with every order.
Is the tube single-ended or double-ended?
The standard ranges are double-ended: live at one end, neutral at the other, with the two pins bridged in the holder. Single-ended versions are available on request for fittings where the wiring is already at one end only.
Can LED tubes be used in a cold store?
Yes, and they are commonly used there because they start instantly at low temperature where a fluorescent tube struggles. Confirm the operating temperature of the specific variant on the enquiry.
What is the 170 lm/W T6 range for?
Projects where the circuit capacity or the fitting count is fixed and more light is needed from the same fixture. It runs on 175-265V, so it is not for 110V sites.
Do you supply the fitting as well as the tube?
Yes — batten fittings, waterproof fittings and tri-proof bodies are available as a package with the tubes. See the batten range and the tri-proof range.
Related ranges: LED battens for complete fittings, tri-proof lights for sealed bodies, panel lights for ceiling grids, high bay lights for tall spaces.
أنبوب LED Light Manufacturer - T8 Tubes Wholesale from the Factory
Lowcled manufactures T8 LED tube lights in 0.6m, 0.9m, 1.2m and 1.5m lengths for offices, warehouses, workshops and car parks. As a tube light factory in Shenzhen we supply standard T8 tubes as well as tri-proof vapor-tight tube versions, supporting both single-ended and double-ended wiring with frosted or clear covers.
- Wholesale supply: factory-direct tube light pricing, flexible MOQ, mixed length loading for container orders.
- OEM options: private-label packaging, custom CCT (4000K/6500K standard), driver brands on request.
- Project support: IES files, Dialux lighting design and compliance documents for tenders.
Request a tube light quotation - our sales engineers reply with pricing, samples and photometric data within one working day.