Thank you very much for purchasing PIAA product. Read this instruction
manual thoroughly for proper use of the product. After completing your
installation, please keep this manual for future reference.
Installation Manual for LED Performance Bulbs (Type H4)
For customers …………………………･ Please forward this manual to the next owner.
For installation service agents ……… Be sure to hand over this instruction manual to
the customer after installation.
※ marks and marks
in this manual indicate important notices for
installing this product. Be sure to follow these
notices in order to ensure safe and reliable work.
Indicates procedures or situations
that may cause bodily harm if used
improperly.
Indicates items that may cause
damage or abnormality to products
if used improperly.
① LED bulb assembly
(H4 type) 【２ pieces】
② Controller【２ pieces】
③ Tie wrap【6 pieces】
Contents
●
This product complies with JIS standards (Japanese Industrial Standards) D5500 and is set and produced
within the white light region defined by the automotive headlamp standards.
※ Supplement (JIS D5500)
The values for white light defined by the JIS standards are as follows.
When these numbers are shown in a graph, the beam widths are indicated in the list below.
When the measurement results are within the chromaticity range specified by JIS D5500 it is determined as
white light.
■ Japanese Industrial Standards
Chromaticity Range
【White】 0.500≧ｘ≧0.310
ｙ≦0.150＋0.640ｘ
ｙ≧0.050＋0.750ｘ
0.440≧ｙ≧0.382
CIE CHROMATICITY DIAGRAM
0.500.480.460.44 0.560.540.520.420.400.380.360.340.320.30
0.46
0.44
0.42
0.50
0.48
0.52
0.40
0.38
0.36
0.34
0.32
0.30
0.28
0.26
y
x
Japanese Industrial Standards
(JIS) white light range
【2】Regarding car inspections
PIAA CORPORATION
www.piaa.com
www.piaa.co.jp
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