The red lights on the top and the jib ends: Lantern L32 below 45 metres, M2K as the top light above that
| Light intensity | > 32.5 cd |
| Power supply | 10-60 V DC or 110-230 V AC |
| Power consumption | 3 W DC, 4.5 W AC |
| Ambient temperature | -40 to +55 °C |
| Variants | Double, infrared, flashing |
| Light intensity | 2,000 cd |
| Power supply | 12 V DC, 24-48 V DC or 110-230 V AC |
| Weight | 5.5 kg |
| Ingress protection | IP66 |
| Variants | Double, infrared, Type C steady |
| Height | Usual layout |
|---|---|
| Up to 45 m | Lantern L32 at the top and at both jib ends |
| 45 to 150 m | Lantern M2K at the top, L32 at the jib ends and at intermediate levels no more than 52 m apart |
| Above 150 m | Per project, often with white light by day |
Background: The light classes, height limits and reporting rules per country are explained in the knowledge article obstacle lighting and ICAO.
That differs per country and per location, and the aviation authority decides. As a guide: in most European countries a crane from 100 metres has to be notified, and lower limits apply around airports and helicopter landing sites. ICAO recommends low intensity below 45 metres and a flashing medium intensity top light from 45 to 150 metres.
Objects from 100 metres, including temporary cranes, are notified to the ILT. The notification includes the number and type of obstruction lights. Around Schiphol and Lelystad, tower cranes need an environmental permit under the Luchthavenindelingbesluit, applied for through the Omgevingsloket. Source: ilent.nl.
The Allgemeine Verwaltungsvorschrift zur Kennzeichnung von Luftfahrthindernissen requires marking from 100 metres outside built-up areas and from 150 metres in cities, and lower within the protection zones of airports. Cranes count as temporary obstacles. The Landesluftfahrtbehörde decides, on advice from DFS.
Cranes and temporary installations near airports are assessed by skeyes. The marking of obstacles is set out in circular CIR/GDF-03 of the FPS Mobility and Transport, Directorate-General Aviation. Request the advice before the crane is erected.
The CAA requires notification for cranes higher than 10 metres within 6 kilometres of an aerodrome, and for cranes from 100 metres anywhere. For planned projects at least eight weeks ahead. The CAA guidance CAP 1096 recommends 32 candela lights below 45 metres, 2,000 candela above that with intermediate levels no more than 52 metres apart, and lights on both jib ends.
In France, structures, including mobile ones, need authorisation from 50 metres outside and 100 metres inside built-up areas, through the DGAC. Marking follows the arrêté of 23 April 2018. In Spain, AESA authorisation is required within the aeronautical easement zones and for obstacles from 100 metres; the lighting is set per decision.
Low intensity Type B is a steady red light of at least 32 candela for obstacles up to 45 metres and for the ends and intermediate levels of taller structures. Medium intensity Type B is a flashing red light of 2,000 candela, visible from much further away, which belongs on top of structures from 45 metres.
Red obstruction lighting is for the night and for poor visibility; a photoelectric switch turns it on and off automatically. By day a crane is usually marked with colour or flags. For structures above 150 metres the authority may require white light by day; we supply those lights on request.
No. We supply the lights, the control and the mounting brackets, and advise on the layout. Mounting on site and the notification or permit with the authority are arranged by you or your crane hire company.
We supply standard versions from stock. For large quantities or models outside the standard range we agree the delivery time in the quotation.
The Lantern L32 runs on 10 to 60 V DC or 110 to 230 V AC, the Lantern M2K on 12 V DC, 24 to 48 V DC or 110 to 230 V AC. If the crane has no power at night, there is a solar kit with a battery.
| Standard delivery | From stock |
| Standard | ICAO Annex 14, Volume I |
| Response | Within 1 business day |
