Automotive indicator replacement designed to match P21W fittings and common motorbike housings. Confidence when switching to clear-lens indicators, giving a cleaner, more modern look. Is ASC Light Bulb P21W the right choice for riders upgrading to clear lenses?
⚡ At a Glance
- • Light Output: 21W P21W rating with amber finish for clear-lens signalling
- • Best for: Motorbike owners upgrading to clear indicator lenses or replacing P21W bulbs
- • Not ideal for: Applications that require LED replacements or non-BA15s base types
Pair of 12V P21W bulbs with BA15s straight pins and chrome/amber finish. Suited for clear-lens indicator upgrades and direct replacement in compatible housings.
Clearer signalling with clear lenses - thanks to amber finish and 21W P21W
Amber chrome finish applied to a 12V P21W (343) filament bulb, rated 21W and fitted to a BA15s single-contact bayonet base. Descriptions list both P21W and PY21W compatibility.
Amber tint increases contrast when used behind clear lenses, helping indicators remain visible and intentional during signalling.
Hassle-free replacement - with BA15s straight pins
BA15s base with straight pins in a twin pack format provides the common bayonet connection used on many motorcycle indicator housings. Listings reference straight pins x2 for matched replacements.
Push-fit installation into compatible indicator housings, making left and right replacement straightforward without adapters.
Consistent signalling brightness - with standard 21W rating
21W power at 12V, indicated as 343/12V/21W, aligns with typical signalling bulb specifications for P21W types. The bulb is marketed under the VexonEye name and ASC brand.
Delivers the expected brightness for conventional indicators and serves as a direct swap where P21W bulbs are specified.
✨ The 4 Key Reasons for ASC Light Bulb P21W
- VexonEye finish - Improves contrast for clear-lens indicator upgrades and modern look
- P21W / PY21W compatibility - Fits standard 12V signalling circuits used on many motorcycles
- BA15s straight pins - Simple push-fit installation into common indicator housings without modification
- Twin pack - Two bulbs supplied for matched brightness on left and right indicators
📋 Technical Details at a Glance
- Bulb Type: P21W / PY21W
- Voltage: 12V
- Wattage: 21W
- Base: BA15s (bayonet single-contact)
- Finish: Chrome / Amber
❓ Frequently Asked Questions
Q: Will these bulbs work with clear indicator lenses?
A: Yes, the amber finish and P21W rating are described as compatible with clear-lens indicator upgrades, and user feedback confirms suitability.
Q: Do they fit motorcycle indicator housings?
A: Yes, the BA15s straight-pin bayonet base is commonly used in motorcycle indicator housings, and reviews note a good fit for motorbikes.
Q: How many bulbs are included and what base do they use?
A: The listing specifies a pair of bulbs (x2) with BA15s straight pins, designed for P21W/PY21W fitments.
🏆 Our Verdict
Suited for riders who want a straightforward, matched replacement when converting to clear indicator lenses. The combination of a 21W P21W filament, amber finish and BA15s straight pins makes these bulbs a pragmatic choice for many motorbike indicator housings. Consider suitability against any LED conversion plans, since these are conventional filament replacements rather than LED options.
