# Best UV light for curing resin: lamps, flashlights and wattage Source: https://resinandmold.com/best/best-uv-light-for-resin Publisher: Resin and Mold. Picks are chosen from what each Amazon listing states, not from hands-on tests. Method: https://resinandmold.com/how-we-pick A UV resin light has one job: cure the piece all the way through without leaving sticky spots. A weak or wrong-wavelength light is a leading cause of sticky UV resin, so the numbers on the listing matter. Resin makers work in the 365 to 405 nm range, and Let's Resin advises a lamp above 12 W and not over 54 W, because too much power wrinkles the surface. Shape matters as much as power. A double-sided UV resin lamp lights a mold from above and below and has a timer, which suits molds and batches. A UV resin flashlight is for spot curing: bezels, doming, fixing a layer in place before the full cure. Opaque molds and dark colors still need thin layers and light on both sides. This guide compares seven lights by stated wattage, wavelength, timer settings and power source, taken from each listing. Where a listing leaves a figure out, the table says not stated. Nothing here was tested. Do not look into any UV lamp. ## Picks ### 1. Suzzam 36W Double-Sided UV Light for Resin DIY Crafts Wattage: 36 W; Wavelength: 365 + 405 nm; Timer: 120/180/300 s; Power source: Cable, plug not stated A 36 W double-sided lamp with 24 lamp beads and dual 365 + 405 nm output. The two sides join by magnet and power from one cable, so a mold cures from above and below without flipping. What the listing offers: - States 36 W with 365 nm + 405 nm dual wavelength from 24 evenly distributed lamp beads. - Three timer settings of 120, 180 and 300 seconds, with a digital display on both sides showing the remaining time. - The two sides connect magnetically and only one needs the cable; they also come apart for single-sided use. Limits to know: - The listing does not say what the cable plugs into (USB or a wall adapter) or whether an adapter is included. - No curing area or mold size is given, and there is no timer setting shorter than 120 seconds for thin layers. ### 2. UV Light for Resin,48W 48 LEDs,Double-Sided,360°Surround,Dual 365-405nm Wattage: 48 W; Wavelength: 365-405 nm; Timer: 1/3/5/10 min; Power source: USB, 2 cables included A 48 W, 48 LED lamp that lights a mold from the top, bottom and both sides, with a timer from 1 to 10 minutes. The two halves split into separate lamps, so it suits molds, layered pours and small batches. What the listing offers: - States 48 W from 48 LEDs with a 365-405 nm output; the listing notes colored and glitter resins need longer than clear. - Timer has 1, 3, 5 and 10 minute settings, and two USB cables power both halves together or as two independent lamps. - Includes 2 heat-resistant PC boards (rated to 200 C in the listing) and folds with magnets for storage. Limits to know: - The listing gives no chamber dimensions, only a large curing area, so mold fit cannot be checked before buying. - Power is by USB: no wall adapter is mentioned in the listing, and running both halves takes two USB ports. ### 3. Resiners UV Light, Rechargeable 3-in-1 Foldable UV Lamp, AirWave Pro Wattage: not stated; Wavelength: 365 + 395 nm; Timer: 120 s or continuous; Power source: USB rechargeable battery A rechargeable light bar with 365 + 395 nm output that raises from 0.8 to 7.9 in and extends to 13.4 in wide. Works as a desktop, handheld or wall-mounted lamp for coasters, trays and taller pieces. What the listing offers: - Dual 365 nm + 395 nm wavelengths; height adjusts from 0.8 to 7.9 in and the light bar extends up to 13.4 in. - USB charging gives up to 4 hours of cordless use per the listing, with a 120 second timer or a continuous-on mode. - Folds down to about 7.1 in long for storage and can be used on the desk, in the hand or mounted on a wall. Limits to know: - Wattage is not stated, so its output cannot be compared with the 36 W and 48 W lamps on power. - Only one timer preset (120 seconds); a longer cure means switching to continuous mode and timing it yourself. ### 4. LET'S RESIN 365nm UV Flashlight, 7 LEDs, USB-C Rechargeable, 3000 mAh Wattage: not stated; Wavelength: 365 nm; Timer: not stated; Power source: 3000 mAh, USB-C charging A handheld 365 nm UV resin flashlight with 7 LED beads and a 3000 mAh battery. For spot curing bezels, doming and small pieces; the listing cites about 30 seconds for delicate projects. What the listing offers: - True 365 nm output from 7 LED beads, with the listing citing about 30 seconds for delicate UV resin projects. - The 3000 mAh battery charges by USB-C and is rated for up to 80 minutes of continuous use. - Aluminum alloy body with an IP44 protection rating, designed for one-hand use. Limits to know: - No wattage is stated and no timer is mentioned, so exposure is counted by hand. - A flashlight beam covers a small spot: it suits bezels and touch-ups, not a full mold or a tray of pieces. ### 5. LET'S RESIN Cordless UV Resin Lamp, Rechargeable, 2-Hour Battery Wattage: not stated; Wavelength: not stated; Timer: 2/3/5 min, 20 min on; Power source: 4400 mAh battery A foldable cordless lamp with 18 bulbs, adjustable height and a 4400 mAh battery the listing rates for 2 hours. Suits curing away from an outlet and pieces of different heights, from droplets to molds. What the listing offers: - Rechargeable 4400 mAh battery with a stated 2 hours of continuous use, so no cord runs across the work table. - Timer offers 2, 3 and 5 minute settings plus a 20 minute continuous mode for batches. - Height adjusts for small molds at the lowest setting and taller pieces at the highest, and the lamp folds for a drawer. Limits to know: - Neither wattage nor wavelength is stated, so it cannot be checked against the 365 to 405 nm and above 12 W advice. - It is a single overhead lamp, so the underside of a piece still needs a flip and a second cycle. ### 6. DARKBEAM UV Flashlight 365nm & 395nm Dual Black Light Woods Lamp Ringworm Wattage: 10 W per LED; Wavelength: 365 + 395 nm; Timer: not stated; Power source: USB rechargeable battery A focus-adjustable flashlight with separate 365 nm and 395 nm LEDs, each listed at 10 W, and three modes: either wavelength or both. The listing names UV resin and 3D print curing among its uses. What the listing offers: - Separate switches give three modes: 395 nm, 365 nm or both at once, with each LED listed at 10 W and 1300 mW radiant intensity. - Rechargeable battery rated for 13 to 15 hours of continuous work, with a four-level LED power display. - Focus-adjustable head and an aluminum alloy case with IPX4 water resistance. Limits to know: - It is a general-purpose black light sold mainly for stain and ringworm detection; resin curing is one listed use among many. - A full charge takes 5 to 7 hours, and no timer is mentioned, so exposure has to be counted by hand. ### 7. ULTRAFIRE 395-405nm UV Flashlight for Resin Curing, Zoomable Black Light Wattage: not stated; Wavelength: 395-405 nm; Timer: not stated; Power source: not stated A zoomable aluminum flashlight with a 395-405 nm LED, the longer end of the range UV resin cures in. The title names resin curing; the bullets list UV glue curing and fly tying among detection uses. What the listing offers: - 395-405 nm UV LED chip with an adjustable zoom to widen or narrow the beam. - Aluminum body with a non-slip textured grip and clip, rated IP65 water-resistant and dustproof. - The listing names curing UV glue and making fishing flies among its uses, and the title names resin curing. Limits to know: - Wattage, battery type and run time are not stated in the listing bullets. - Most of the listing is about stain detection; it gives no cure time or resin guidance. As an Amazon Associate I earn from qualifying purchases.