Here's what it says......

Not on "Pulse" or "Static" mode I believe, flashing Yes but otherwise I thought as long as the light was modulated rather thatn switched on/off I thought it was legal.
I am going to get me a set of these:
http://www.emergencyequipmentshop.co.uk/hidealed%E2%84%A2-hideaway-heads-p-369.html?osCsid=ad776466e2b3729cfc33f521813d49f8
my tuppence worth ......... or gobbleygook speak.....
The Convention On Road Traffic - extracts below - desires to facilitate international road traffic and to increase road safety through the adoption of uniform traffic rules.
Your country may not have signed up to the convention (contracting party) and it may be "legal" to have these fitted in your country, however when you travel from a country were these are legal into a country, were these are illegal, then be prepared to be stopped by the police (eg France) and be fined.
Then again feckim
CONVENTION ON ROAD TRAFFIC
DONE AT VIENNA ON 8 NOVEMBER 1968
Annex 5
31. With the exception of two-wheeled motorcycles with or without side-car, every motor vehicle capable of exceeding 25 km (15 miles) per hour on a level road shall be equipped at the rear with at least two red stop lamps, the luminous intensity of which is markedly higher than that of the rear position lamps. The same provision shall apply to every trailer which is the last vehicle
in a combination of vehicles.
34. Every two-wheeled motorcycle without side-car shall be equipped at the rear with one rear position side lamp satisfying the conditions regarding colour and visibility laid down in paragraph 24 (a) above.
24. (a) Every motor vehicle other than a two-wheeled motorcycle without side-car shall be equipped at the rear with an even number of red rear position lamps visible at night in clear weather without causing undue dazzle or inconvenience to other road-users;
42. No lamps, other than direction-indicator lamps and special warning lamps, shall emit a winking or flashing light. Side lamps may wink at the same time as direction-indicator lamps.
42 bis. Special warning lamps shall emit a winking or flashing light. Colours of these lights should conform to the provisions of Article 32, paragraph 14.
Atrticle 32 paragraph 14.
14. Special warning lamps:
(a) Displaying a blue light may be used only on priority vehicles when carrying out an urgent mission or when in other cases it is necessary to give warning to other road-users of the presence of the vehicle;
(b) Displaying an amber light may be used only when the vehicles genuinely assigned to the specific tasks for which they were equipped with the special warning lamp or when the presence of such vehicles on the road constitutes a danger or inconvenience to other road-users. The use of warning lamps displaying other colours may be authorized by domestic legislation.