✔ Free Shipping ✔ 30 Days Return ✔ 1 Year Warranty
Dual-Color Switchback T25 3157 4157 Reverse Light Turn Signal Side Marker Backup Light
✅ 10% OFF First Order Code - FIRST10
✅ $30 OFF Over $150, $50 OFF Over $200
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Boslla BS series for signal bulbs are 1:1 size as the original halogen bulb but with better performance on brightness, stability, customization in your style. It’s easy to upgrade the halogen bulb to the Boslla LED signal bulb by the 10-minutes installation.
Fit on Sockets
Boslla BS 3157 fits on all the socket below:
- 3047 / 3057 / 3157 / 3357 / 3457 / 4057 / 4157
1:1 Size to the Halogen Bulb
Boslla BS T25 LED bulb has the same size as the original 3156 3157 T25 halogen bulb. Also almost the same emitting point on for more focusing lighting.
3-Gen LED Chips & Custom Lens
Boslla BS Series adopts custom Lens to protect the LED chips and bring the uniform light pattern.
Each LED diode is 100% covered with Phosphor Film which brings more saturant lighting sources.
Each 3157 bulb has 15 pcs dual-lighting source emitting in 5 directions.
Boslla BS Series has built-in Intelligent Micro-Control Unite on Dual Size PCB Board. The entire system is stably outputting with high power.
No matter it’s CK or Non-CK socket on your vehicle, Boslla BS Series has the plug and play installation. You don’t need to pay attention to positive or negative plug (+/-) on while doing installation just like a halogen bulb.
Most frequently asked questions and answers
The price is for a pair, meaning 2 bulbs.
You can check the bulb models HERE.
You can also refer to the vehicle owner manual or contact us with your car make/year/model. Our team will help you to choose a suitable model.
A. Boslla LED bulbs are working between 9 to 16V, but the Daytime Running light works on about 7V. So it is not recommended to install on the daytime running light because it may have a flickering with an error on the dashboard, or can't turn on.
If your vehicle's headlight bulbs have a DRL function, please ensure you turn the DRL function off and only use the headlights in the "on" position.
B. To fix the problem, you can add our capacitor/resistor to check. But we can not 100% guarantee it works.
A. The capacitor or resistor Canbus is necessary if it shows an error on the dashboard when removing the original halogen bulb.
B. If encountering the situation that the bulb does not work suddenly but works well again after turning off the power and restart it, please consider changing the dust cover with more space for heat dissipation.
Once your order is placed, a confirmation email will be sent to you. Please verify your order.
A standard processing time of up to 36 hours is required before the order is shipped out. Most in-stock items generally shipped from our US warehouse will take 3-7 working days to be delivered after your order is received. From our China warehouse will take 12-20 working days to be delivered. ("Working days" are Monday-Friday, excluding holidays).
We will try our best to deliver your items during the estimated timeframe.
We offer standard post and express shipping.
|SHIPPING METHOD||SHIPPING TIME|
|Standard Post||3-14 Working Days|
|Expedited Shipping||2-7 Working Days|
For international orders, import duties, taxes, and charges are not included in the shipping costs.
Your tracking number will be sent in an email immediately after we ship the order out.
You may follow the link in the email to check the estimated arrival time and tracking information of your order. (Please note that tracking information will be updated online in 1 working day after your order has been shipped.)
We support Paypal and Credit Card payments. If you fail to pay with Credit Card, we suggest you try Paypal. If there is any question, please feel free to contact us online for help.
1. We want you to be completely happy with your purchase. If for any reason you are not satisfied, please return the item to us within 30 days of purchase for a refund.
2. Before you return, please contact our Customer Service firstly, we will get back to you within 24 hours. Please do not return the parcel to the shipping address on the parcel. Your patience and understanding will be highly appreciated.
3. Returns must be received in their original condition and packaging: unused, unworn, unwashed. Items returned with obvious use or product stains will be subject to refusal.
Boslla products are guaranteed against manufacturing defects for 1 year from the original date of receipt.
Our sole obligation in the event of such defects during this period is to repair or replace the defective part or product with a comparable part or product at Boslla’s sole discretion.
Upon expiration of their respective warranty periods, all Boslla products will receive continuing support through our limited lifetime warranty. The limited lifetime warranty covers labor costs and maintenance with the exclusion of accessories or replacement parts.