Check the listing for details. NEW 5A Laser Diode Constant Current Driver - 1-5W Engraving - TTL - 12V - Fan. Condition: New. Listed at 19.37 USD. NEW 5A Laser Diode Constant Current Driver - 1-5W Engraving - TTL - 12V - FanFunction: The TTL frequency used for stage lights in the market is generally within 20Khz, which can not meet the high-frequency output requirements of 3D printing. This circuit waveform is stable up to 150Khz frequency, and adopts dual fan input. It is suitable for high-end laser driving, high efficiency and heat. Small, is one of the recommended drive circuits for the green. Applicable to all kinds of stage lights, DIY engraving machine and 3D printer laser module driver. Specification Description: Circuit control: 12V step-down circuit, constant current output (current adjustable) Output Specifications: Max 5A Scope of application: 1W-3W-4.75W 405/445/450/520nm red, green and blue laser drive circuit Dimensions: 32.5*50mm (width * length), component height with aluminum base 24mm Frequency control: 0-150Khz Modulation voltage: 0-5V (0V off, 5V on) Input voltage: DC=12V (9-18V) Accessories: 1X NEW 5A Laser Diode Constant Current Driver - 1-5W Engraving - TTL - 12V - FanPaymentWe accept PayPal only.Payment must be received in 7 business days of auction closing.Please leave note for your special request (e.g. Colors or Size) in ebay note when you pay the order.Any special request cannot be accepted after 24 hours of payment,because most of orders will be processed instantly and same day dispatched.Shipping1. Your order will be shipped within 1-2 business days once we receive your payment. 2. Import duties, taxes and handling charges are the buyer's responsibility.3. Please check with your country's customs office for above additional costs in advance. 4. These charges are normally collected by the shipping company, but does not include Remote Area surcharge and any customs fees. Return1. 30 days warranty for returning the defective item from the purchased date.2. We will test all products before the packages were sent out.3. Return items should include the original packaging and all accessories.4. Only defective product will be offered exchange.5. Buyers are responsible for the returning cost, and then we will pay for the resending cost.About us Please note that we are on duty Monday to Friday between 09:00 Am to 18:00 PM Beijing Time, which means we can keep on-line at: Bei Jing(CN)------Monday to Friday------09:00 AM -18:00 PMNew York(US)------Sunday to Thursday------20:00 PM-05:00 AMLondon(UK)------Monday to Friday------01:00 AM-10:00 AMCanberra(AU)------Monday to Friday------11:00 AM-20:00 PMContact us Please don't hesitate to contact us with any queries or comments about our items or your problem. We are a professional trading company, we will always provide you with quality service.