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Pilot Lamps

Pilot Lamps Tubular Screw Base

Pilot Lamps Tubular Screw Base is a group of 108 IMPA-coded items (codes 790501–790638) under Pilot Lamps in the Electrical Equipment section (IMPA 79). All of them are priced per piece. The list runs through 5 metric sizes from 10×28 mm to 26×60 mm.

Buying guide

These are small clear tubular incandescent lamps with an Edison screw base, used as indicator and signal lamps on switchboards, alarm and control panels and machinery consoles. The group lists them by base (E10, E12, E14 and E26), voltage from 4 V to 220 V, current in amps or power in watts, and bulb diameter × length in millimetres.[1]

The electrical officer reorders them by the panel they fit. IMPA asks for the type of glass, base, length, voltage, wattage or amperage to be specified, because the range is large.[1]

How to specify it

Read the base first. In an Edison screw designation the number is the thread diameter in millimetres, measured across the peaks. E10 is the miniature Edison screw, E12 the candelabra, E14 the small Edison screw and E26 the North American medium screw. Each has its own IEC 60061-1 cap sheet, so they do not interchange.[2][3]

Then give the bulb size and rating as printed. The same base comes in several sizes: E12 lamps here are 13 × 33, 15 × 45, 20 × 48 and 20 × 70 mm. Lamps rated in amps and in watts are the same kind of lamp: watts = volts × amps. A maker’s E10 10 × 28 mm lamp is listed as 24 V, 100 mA, 2.4 W.[4]

Rules and certificates

IEC 60061-1 sets lamp caps, with gauges to control interchangeability and safety; lampholders and gauges are in parts 2 and 3. On ships, IEC 60092-202 requires indicating and measuring devices, pilot lamps among them, to be protected by fuses or circuit-breakers.[3][6]

LED lamps with the same cap and bulb size are made as replacements. One maker’s E10 10 × 28 mm LED lamp runs on 24 V AC or DC through a built-in bridge rectifier and draws 13 mA, against 100 mA for the incandescent lamp. Check the voltage rating, AC or DC, and the length. Another maker’s E10 LED alternative to a 10 × 28 lamp is only 24 mm long.[5][4]

Questions buyers ask

What does E10, E12 or E14 mean on a pilot lamp?
The screw-base thread diameter in millimetres: 10, 12 or 14 mm. They are different caps and will not fit each other’s holders.
How do I convert a lamp rated 24 V 0.11 A to watts?
Multiply volts by amps: 24 × 0.11 ≈ 2.6 W. A maker’s 24 V 100 mA lamp of the same 10 × 28 mm size is rated 2.4 W.
Can I replace an incandescent pilot lamp with an LED?
Often, with a lamp of the same cap and size made for it. Check the LED’s voltage and AC/DC rating and its length. One maker’s E10 LED draws 13 mA where the incandescent lamp draws 100 mA.

Sources

  1. IMPA catalogue on ShipServ: item 790505, lamp pilot tubular clear E-10 24V 0.11A 10x28mm (group page and ordering note)
  2. Edison screw: Wikipedia (designations and IEC 60061-1 sheet numbers)
  3. IEC Webstore: IEC 60061-1 Lamp caps and holders together with gauges, Part 1: Lamp caps
  4. Bailey: datasheet E28024100, E10 T10x28 24V 100mA 2.4W indicator lamp (via RS)
  5. Josef Barthelme: datasheet 591024xx, LED bulb E10 24 V AC/DC with bridge rectifier (rev. 1.3, 2016)
  6. IEC 60092-202:2016 Electrical installations in ships, Part 202: System design, Protection (text incorporated by reference in 46 CFR)

Published by Sherif Awad, founder of GeoMarineHub — in ship supply since 1990, a family business since 1981 (45 years). Last checked .

At a glance

Part of Electrical Equipment (IMPA section 79): Lamps, cable, switches, fuses, batteries, connectors, marine lighting fittings and meters.

It is one of 10 groups under Pilot Lamps; the others include Indicator Lamps, LED Panel Indicating Lights, Miniature Pilot Lamps, Pilot Lamps Globular Bayonet Base, Pilot Lamps Globular Screw Base and 4 more.

Post the ones you need as a requirement and verified suppliers activated at your port bid on them — sealed, so nobody sees another bid.

Items
108
IMPA codes
790501–790638
Priced
per piece
Sizes
10×28 mm – 26×60 mm

Items

IMPAItemUnit
790501LAMP PILOT TUBULAR CLEAR E-10, 6.3V 0.15A 10X28MMPCS
790502LAMP PILOT TUBULAR CLEAR E-10, 8V 0.15A 10X28MMPCS
790503LAMP PILOT TUBULAR CLEAR E-10, 12V 0.11A 10X28MMPCS
790504LAMP PILOT TUBULAR CLEAR E-10, 18V 0.11A 10X28MMPCS
790505LAMP PILOT TUBULAR CLEAR E-10, 24V 0.11A 10X28MMPCS
790506LAMP PILOT TUBULAR CLEAR E-10, 28V 0.11A 10X28MMPCS
790507LAMP PILOT TUBULAR CLEAR E-10, 30V 0.11A 10X28MMPCS
790508LAMP PILOT TUBULAR CLEAR E-10, 48V 3W 10X28MMPCS
790509LAMP PILOT TUBULAR CLEAR E-10, 60V 3W 10X28MMPCS
790510LAMP PILOT TUBULAR CLEAR E-10, 110V 5W 10X28MMPCS
790511LAMP PILOT TUBULAR CLEAR E-10, 220V 5W 10X28MMPCS
790512LAMP PILOT TUBULAR CLEAR E-10, 48V 2W 10X28MMPCS
790513LAMP PILOT TUBULAR CLEAR E-10, 4V 0.15A 10X28MMPCS
790514LAMP PILOT TUBULAR CLEAR E-10, 6.3V 0.25A 10X28MMPCS
790515LAMP PILOT TUBULAR CLEAR E-10, 8V 0.25A 10X28MMPCS
790516LAMP PILOT TUBULAR CLEAR E-12, 6.3V 0.15A 13X33MMPCS
790517LAMP PILOT TUBULAR CLEAR E-12, 8V 0.15A 13X33MMPCS
790518LAMP PILOT TUBULAR CLEAR E-12, 12V 0.11A 13X33MMPCS
790519LAMP PILOT TUBULAR CLEAR E-12, 18V 0.11A 13X33MMPCS
790520LAMP PILOT TUBULAR CLEAR E-12, 24V 0.11A 13X33MMPCS
790521LAMP PILOT TUBULAR CLEAR E-12, 28V 0.11A 13X33MMPCS
790522LAMP PILOT TUBULAR CLEAR E-12, 30V 0.11A 13X33MMPCS
790523LAMP PILOT TUBULAR CLEAR E-12, 48V 3W 13X33MMPCS
790524LAMP PILOT TUBULAR CLEAR E-12, 60V 5W 13X33MMPCS
790525LAMP PILOT TUBULAR CLEAR E-12, 110V 5W 13X33MMPCS
790526LAMP PILOT TUBULAR CLEAR E-12, 220V 5W 13X33MMPCS
790527LAMP PILOT TUBULAR CLEAR E-12, 48V 2W 13X33MMPCS
790528LAMP PILOT TUBULAR CLEAR E-10, 12V 0.15A 10X28MMPCS
790529LAMP PILOT TUBULAR CLEAR E-10, 12V 2W 10X28MMPCS
790530LAMP PILOT TUBULAR CLEAR E-10, 18V 2W 10X28MMPCS
790531LAMP PILOT TUBULAR CLEAR E-12, 6.3V 0.15A 15X45MMPCS
790532LAMP PILOT TUBULAR CLEAR E-12, 12V 0.11A 15X45MMPCS
790533LAMP PILOT TUBULAR CLEAR E-12, 18V 0.11A 15X45MMPCS
790534LAMP PILOT TUBULAR CLEAR E-12, 24V 0.11A 15X45MMPCS
790535LAMP PILOT TUBULAR CLEAR E-12, 28V 0.11A 15X45MMPCS
790536LAMP PILOT TUBULAR CLEAR E-12, 30V 0.11A 15X45MMPCS
790537LAMP PILOT TUBULAR CLEAR E-12, 110V 5W 15X45MMPCS
790538LAMP PILOT TUBULAR CLEAR E-12, 220V 5W 15X45MMPCS
790539LAMP PILOT TUBULAR CLEAR E-10, 24V 1W 10X28MMPCS
790540LAMP PILOT TUBULAR CLEAR E-10, 24V 2W 10X28MMPCS
790541LAMP PILOT TUBULAR CLEAR E-12, 12V 5W 20X48MMPCS
790542LAMP PILOT TUBULAR CLEAR E-12, 18V 0.11A 20X48MMPCS
790543LAMP PILOT TUBULAR CLEAR E-12, 18V 5W 20X48MMPCS
790544LAMP PILOT TUBULAR CLEAR E-12, 24V 0.11A 20X48MMPCS
790545LAMP PILOT TUBULAR CLEAR E-12, 24V 3W 20X48MMPCS
790546LAMP PILOT TUBULAR CLEAR E-12, 24V 5W 20X48MMPCS
790547LAMP PILOT TUBULAR CLEAR E-12, 28V 5W 20X48MMPCS
790548LAMP PILOT TUBULAR CLEAR E-12, 30V 5W 20X48MMPCS
790549LAMP PILOT TUBULAR CLEAR E-12, 48V 5W 20X48MMPCS
790550LAMP PILOT TUBULAR CLEAR E-12, 60V 5W 20X48MMPCS
790551LAMP PILOT TUBULAR CLEAR E-12, 110V 5W 20X48MMPCS
790552LAMP PILOT TUBULAR CLEAR E-12, 110V 10W 20X48MMPCS
790553LAMP PILOT TUBULAR CLEAR E-12, 110V 20W 20X48MMPCS
790554LAMP PILOT TUBULAR CLEAR E-12, 220V 5W 20X48MMPCS
790555LAMP PILOT TUBULAR CLEAR E-12, 220V 10W 20X48MMPCS
790556LAMP PILOT TUBULAR CLEAR E-12, 220V 20W 20X48MMPCS
790557LAMP PILOT TUBULAR CLEAR E-10, 24V 3W 10X28MMPCS
790558LAMP PILOT TUBULAR CLEAR E-10, 28V 0.04A 10X28MMPCS
790559LAMP PILOT TUBULAR CLEAR E-10, 28V 1W 10X28MMPCS
790560LAMP PILOT TUBULAR CLEAR E-10, 28V 3W 10X28MMPCS
790561LAMP PILOT TUBULAR CLEAR E-12, 110V 10W 20X70MMPCS
790562LAMP PILOT TUBULAR CLEAR E-12, 110V 15W 20X70MMPCS
790563LAMP PILOT TUBULAR CLEAR E-12, 220V 10W 20X70MMPCS
790564LAMP PILOT TUBULAR CLEAR E-12, 220V 15W 20X70MMPCS
790565LAMP PILOT TUBULAR CLEAR E-10, 30V 2W 10X28MMPCS
790566LAMP PILOT TUBULAR CLEAR E-10, 48V 5W 10X28MMPCS
790567LAMP PILOT TUBULAR CLEAR E-10, 60V 2W 10X28MMPCS
790568LAMP PILOT TUBULAR CLEAR E-14, 24V 5W 15X48MMPCS
790569LAMP PILOT TUBULAR CLEAR E-14, 110V 10W 15X48MMPCS
790570LAMP PILOT TUBULAR CLEAR E-14, 220V 10W 15X48MMPCS
790571LAMP PILOT TUBULAR CLEAR E-14, 220V 15W 15X48MMPCS
790572LAMP PILOT TUBULAR CLEAR E-10, 110V 3W 10X28MMPCS
790573LAMP PILOT TUBULAR CLEAR E-10, 220V 3W 10X28MMPCS
790574LAMP PILOT TUBULAR CLEAR E-12, 24V 2W 13X33MMPCS
790575LAMP PILOT TUBULAR CLEAR E-12, 24V 3W 13X33MMPCS
790576LAMP PILOT TUBULAR CLEAR E-26, 24V 5W 26X60MMPCS
790577LAMP PILOT TUBULAR CLEAR E-26, 110V 10W 26X60MMPCS
790578LAMP PILOT TUBULAR CLEAR E-26, 110V 15W 26X60MMPCS
790579LAMP PILOT TUBULAR CLEAR E-26, 220V 10W 26X60MMPCS
790580LAMP PILOT TUBULAR CLEAR E-26, 220V 15W 26X60MMPCS
790581LAMP PILOT TUBULAR CLEAR E-12, 28V 2W 13X33MMPCS
790582LAMP PILOT TUBULAR CLEAR E-12, 30V 2W 13X33MMPCS
790583LAMP PILOT TUBULAR CLEAR E-12, 115V 5W 13X33MMPCS
790584LAMP PILOT TUBULAR CLEAR E-26, 24V 5W 26X70MMPCS
790585LAMP PILOT TUBULAR CLEAR E-26, 110V 10W 26X70MMPCS
790586LAMP PILOT TUBULAR CLEAR E-26, 110V 15W 26X70MMPCS
790587LAMP PILOT TUBULAR CLEAR E-26, 220V 10W 26X70MMPCS
790588LAMP PILOT TUBULAR CLEAR E-26, 220V 15W 26X70MMPCS
790589LAMP PILOT TUBULAR CLEAR E-12, 220V 3W 13X33MMPCS
790590LAMP PILOT TUBULAR CLEAR E-12, 220V 10W 13X33MMPCS
790591LAMP PILOT TUBULAR CLEAR E-12, 24V 3W 15X45MMPCS
790592LAMP PILOT TUBULAR CLEAR E-12, 24V 5W 15X45MMPCS
790593LAMP PILOT TUBULAR CLEAR E-12, 28V 5W 15X45MMPCS
790594LAMP PILOT TUBULAR CLEAR E-12, 30V 5W 15X45MMPCS
790595LAMP PILOT TUBULAR CLEAR E-12, 48V 5W 15X45MMPCS
790596LAMP PILOT TUBULAR CLEAR E-12, 110V 10W 15X45MMPCS
790597LAMP PILOT TUBULAR CLEAR E-12, 220V 10W 15X45MMPCS
790613LAMP PILOT TUBULAR CLEAR E-12, 6V 5W 20X48MMPCS
790614LAMP PILOT TUBULAR CLEAR E-12, 8V 5W 20X48MMPCS
790615LAMP PILOT TUBULAR CLEAR E-12, 12V 3W 20X48MMPCS
790627LAMP PILOT TUBULAR CLEAR E-12, 12V 10W 20X48MMPCS
790628LAMP PILOT TUBULAR CLEAR E-12, 12V 20W 20X48MMPCS
790629LAMP PILOT TUBULAR CLEAR E-12, 18V 3W 20X48MMPCS
790630LAMP PILOT TUBULAR CLEAR E-12, 24V 10W 20X48MMPCS
790635LAMP PILOT TUBULAR CLEAR E-12, 24V 20W 20X48MMPCS
790636LAMP PILOT TUBULAR CLEAR E-12, 50V 5W 20X48MMPCS
790637LAMP PILOT TUBULAR CLEAR E-12, 115V 10W 20X48MMPCS
790638LAMP PILOT TUBULAR CLEAR E-12, 115V 20W 20X48MMPCS

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