272:, in its simplest form, so only one of the two headlights operates at a time, with the two flashing at a preset rate. In its traditional form a wig-wag emits the right and left headlamps alternately, with each lamp lit for around half a second at a time. In the United Kingdom, the wig-wag is only seen on the road on emergency vehicles. The 'standard' wig-wag is often used within a cycle of other illumination patterns, such as swiftly alternating the left and right headlights, alternating the left and right headlights slowly, or flashing both headlights together, and using a mixture of high- and low-/dipped-beams.
250:
73:
175:
32:
296:
to increase conspicuity during the daytime. In the United States specifically, additional Wig-Wag lights (separate from the headlights) are used on all public transport buses, and such buses can use white (clear) lights (LED Headlight with High Low Beam & Parking Light) to increase conspicuity
275:
Although the use of flashing headlights does increase the visibility of any vehicle, it can also create problems. When highbeam headlights are flashed, the wig-wag may create glare or temporarily blind the drivers of oncoming vehicles.
291:
specifically, additional wig-wag lights (separate from the headlights) are used on all public transport buses. In the United States, motorcycles are similarly allowed to be equipped with a white (clear) lights (LED)
340:
371:
347:
90:
45:
256:
ambulance displays the operation of a wig-wag: only one headlight operates at a time, with the two flashing alternately at a preset rate.
236:
218:
156:
59:
185:
137:
109:
94:
393:
293:
116:
253:
408:
388:
200:
123:
196:
83:
51:
105:
20:
279:
Generally, wig-wags are prohibited on all vehicles except emergency vehicles. However, the road rules in
249:
314:
130:
365:
288:
280:
287:, and some areas in the United States allow school buses to have flashing headlights. In
402:
72:
19:
This article is about the wig-wag light-flashing mechanism. For other uses, see
265:
284:
269:
203:. Statements consisting only of original research should be removed.
248:
168:
66:
25:
192:
16:
Visual wig-wag (automobile) lights-flashing mechanism
97:. Unsourced material may be challenged and removed.
8:
315:"UK Road Vehicles Lighting Regulations 1989"
60:Learn how and when to remove these messages
237:Learn how and when to remove this message
219:Learn how and when to remove this message
157:Learn how and when to remove this message
306:
370:: CS1 maint: archived copy as title (
363:
7:
95:adding citations to reliable sources
14:
41:This article has multiple issues.
173:
71:
30:
82:needs additional citations for
49:or discuss these issues on the
1:
394:Motorcycle headlamp modulator
264:is a device for flashing an
389:Emergency vehicle equipment
199:the claims made and adding
425:
18:
106:"Wig-wag" automobile
21:Wigwag (disambiguation)
257:
252:
297:during the daytime.
91:improve this article
409:Emergency vehicles
319:legislation.gov.uk
294:headlamp modulator
258:
184:possibly contains
247:
246:
239:
229:
228:
221:
186:original research
167:
166:
159:
141:
64:
416:
376:
375:
369:
361:
359:
358:
352:
346:. Archived from
345:
337:
331:
330:
328:
326:
311:
242:
235:
224:
217:
213:
210:
204:
201:inline citations
177:
176:
169:
162:
155:
151:
148:
142:
140:
99:
75:
67:
56:
34:
33:
26:
424:
423:
419:
418:
417:
415:
414:
413:
399:
398:
385:
380:
379:
362:
356:
354:
350:
343:
341:"Archived copy"
339:
338:
334:
324:
322:
321:. UK Government
313:
312:
308:
303:
289:New South Wales
281:New South Wales
243:
232:
231:
230:
225:
214:
208:
205:
190:
178:
174:
163:
152:
146:
143:
100:
98:
88:
76:
35:
31:
24:
17:
12:
11:
5:
422:
420:
412:
411:
401:
400:
397:
396:
391:
384:
381:
378:
377:
332:
305:
304:
302:
299:
245:
244:
227:
226:
181:
179:
172:
165:
164:
79:
77:
70:
65:
39:
38:
36:
29:
15:
13:
10:
9:
6:
4:
3:
2:
421:
410:
407:
406:
404:
395:
392:
390:
387:
386:
382:
373:
367:
353:on 2016-03-26
349:
342:
336:
333:
320:
316:
310:
307:
300:
298:
295:
290:
286:
282:
277:
273:
271:
267:
263:
255:
251:
241:
238:
223:
220:
212:
202:
198:
194:
188:
187:
182:This article
180:
171:
170:
161:
158:
150:
139:
136:
132:
129:
125:
122:
118:
115:
111:
108: –
107:
103:
102:Find sources:
96:
92:
86:
85:
80:This article
78:
74:
69:
68:
63:
61:
54:
53:
48:
47:
42:
37:
28:
27:
22:
355:. Retrieved
348:the original
335:
323:. Retrieved
318:
309:
278:
274:
261:
259:
233:
215:
206:
183:
153:
147:January 2015
144:
134:
127:
120:
113:
101:
89:Please help
84:verification
81:
57:
50:
44:
43:Please help
40:
357:2017-04-20
325:12 January
266:automobile
193:improve it
117:newspapers
46:improve it
285:Australia
270:headlamps
197:verifying
52:talk page
403:Category
383:See also
366:cite web
209:May 2014
262:wig-wag
191:Please
131:scholar
133:
126:
119:
112:
104:
351:(PDF)
344:(PDF)
301:Notes
138:JSTOR
124:books
372:link
327:2015
254:NWAS
110:news
268:'s
195:by
93:by
405::
368:}}
364:{{
317:.
283:,
260:A
55:.
374:)
360:.
329:.
240:)
234:(
222:)
216:(
211:)
207:(
189:.
160:)
154:(
149:)
145:(
135:·
128:·
121:·
114:·
87:.
62:)
58:(
23:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
