Specifications
Bulb
- Lamp type
- PY21W
- Light source
- Incandescent (signal)
- Voltage
- 12V
- Wattage
- 21W
- Luminous flux
- 280lm
- Base
- BAU15s
- Lifetime (B3)
- 250h
- ECE approved for road use
- ✓ Yes
Physical
- Weight
Why this one
01
Amber glass
Flashes amber behind clear indicator lenses.
02
Offset BAU15s pins
Will not go into a P21W stop-lamp socket by mistake.
03
E1 approved
ECE PY21W lamp with E1 type approval.
04
Box of 10
Trade pack; 2-piece blister also available.
On the job
Indicators behind clear lenses
PY21W has amber glass, so it can sit behind a clear indicator lens and still flash the right colour. The offset bayonet pins on the BAU15s base mean it only fits an indicator socket, not a stop-lamp holder. On our list it is the most common indicator bulb, front and rear. 21 W, 280 lm, rated 250 h B3.
Same visit
A fast-flashing indicator usually points to a failed bulb on that side. Replace in pairs to keep the colour matched, and check the side repeaters and the other indicators while the customer waits. The 2-piece blister suits a counter sale.
