Lamp Finder

Identify Your Fluorescent Tube.
Choose the Right LED Replacement.

Wattage alone is not enough. The correct LED replacement depends on the tube type, base, exact length and application.

T5 & T8

Filter by Tube Size

For straight tubes, the specified length includes the end caps but excludes the pins. Nominal lengths such as 120 cm are approximate only.

Tube Type Search

Fluorescent Wattage	Exact Tube Length	Base Type	Typical Designation
4 W	135.9 mm	G5	Rare
6 W	212.1 mm	G5	Rare
8 W	288.3 mm	G5	Rare
13 W	516.9 mm	G5	Approx. 60 cm / 2 ft
14 HE / 24 HO	549.0 mm	G5	Approx. 60 cm / 2 ft
21 HE / 39 HO	849.0 mm	G5	Approx. 90 cm / 3 ft
28 HE / 50 HO / 54 HO	1,149.0 mm	G5	Approx. 120 cm / 4 ft
35 HE / 49 HO / 73 HO / 80 HO	1,449.0 mm	G5	Approx. 150 cm / 5 ft
10 W	330 mm	G13	Rare
14 W	361 mm	G13	Rare
15/16 W	437–438 mm	G13	Special Length
18 W	589.8 mm	G13	Approx. 60 cm / 2 ft
23 W	970 mm	G13	Special Length
30 W	894.6 mm	G13	Approx. 90 cm / 3 ft
36 W	1,199.4 mm	G13	Approx. 120 cm / 4 ft
38 W	1,047 mm	G13	Special Length
58 W	1,500 mm	G13	Approx. 150 cm / 5 ft
70 W	1,763.8 mm	G13	Approx. 180 cm

How to Measure Your Tube Measure from end cap to end cap, excluding the pins. Also verify the base type and tube diameter.

Other Lamp Types

G23, G24d, G24q, GX24d, GX24q, 2G7, 2G10 and 2G11.

2GX13 and G10q in various diameters and wattages.

2G13 versions with differing overall dimensions.

Historic T5/T8 dimensions and customer-specific applications must be checked precisely.

Next Step

SUPERIS SI4 and SUPERIS T5/T8 LED tubes with single-ended power supply.

SUPERIS RAIL for 24 V, 110 V and 230 V, including special railway frequencies.

Send us a photo, dimensions, rating plate and application details. We will identify the most suitable solution.